PEScience Protein Review

This PEScience Protein Review cuts beneath the glossy marketing and dessert-like flavor promises to uncover what’s really inside the scoop. We found a protein powder that tastes like a treat — but keeps the curtains closed on protein quality. PEScience plays a big transparency game, yet the lack of independent 3rd-party protein testing raises serious concerns about its protein. By the end of this PEScience Protein Review, you’ll know whether you’re buying verified muscle-building protein… or a milkshake with a marketing budget.

If you want ot read more about PEScience LLC., check out my article, Is PEScience Good?

🔑 PEscience Protein Review, TL;DR

In this PEScience Protein Review, we strip away the dessert-flavored hype to see what PEScience LLC is really putting in your shaker. On the surface, PEScience protein powder looks like a smart pick: thick, creamy shakes, low calories, and that slick claim of 23–24g protein per scoop. The brand positions Select protein as premium — with clean macros and a “better than whey alone” casein-whey blend.

PEScience LLC refuses to publish a full amino acid profile. They add isolated leucine peptides — but won’t disclose how many grams. They market protein purity — but leave buyers guessing on true protein yield.

That’s the transparency gap. Without verified leucine totals, you can’t confirm whether the protein claimed is the protein absorbed. For anyone drinking PEScience protein to stimulate muscle protein synthesis, incomplete data means incomplete confidence.

Select Protein tastes excellent — elite mixability, dessert-style texture, and consistent flavor praise in verified reviews. Trust is key when investing in premium products! PEScience offers delicious protein powders that taste just like milkshakes while helping you meet your macronutrient goals. Although a bit more transparency would be great, it’s still a solid choice for anyone looking to elevate their nutrition!

PEScience Select has earned a 23.5/50 (47%) in this review. While it’s tasty for comfort shakes, it may not meet the needs of serious performance goals. Keep searching for the right fit!

🛡️ How I Approach This PEscience Protein Powder Review

This PEscience Protein Powder Review isn’t written from a manufacturer’s press kit or affiliate talking points—it’s built from hands-on testing and the same scrutiny I apply to every supplement I put in my own stack. As a certified strength and conditioning expert (NSCA) and a certified sports nutrition specialist (CISSN), I evaluate products based on science, sourcing, and real-world performance—not hype.

Every PEscience Protein Powder Review on my site exists because someone asked for the truth. No sponsorships. No brand influence. Just what’s actually inside the scoop: my reviews focus on transparency —protein integrity, third-party verification, amino acid data, mixability, and flavor that matches the picture on the front—not just the marketing promise.

You’ll see affiliate links here, which keep reviews like this going—but my opinions stay 100% independent. My only loyalty is to the consumer, trying to avoid another overpriced tub of disappointment.

If you want to see the testing and breakdowns in action, you can find me on YouTube at JKremmer Fitness:  https://www.youtube.com/@jkremmerfitness.

My goal with this PEscience Protein Powder Review—and every one I publish—is simple: give you the information that brands leave out so you can choose the protein that actually supports your goals. Honest, direct, and useful. That’s how a PEscience Protein Powder Review should be written.

📖 PEscience Protein Review Details

PEScience LLC built Select Protein to win the taste test first. The label promises “perfectly flavored to taste true to each flavor’s name,” and in this PEScience Protein Review, that one’s undeniable — this is the milkshake of the supplement aisle. PEScience protein powder blends thick, dissolves effortlessly, and feels more like a comfort drink than a chore. If flavor is your decision-maker, select checks that box with a Sharpie.

Where things get less glossy is the quality story behind that taste. The marketing claims that Select is “third-party tested for quality and purity.” That’s true for safety metrics — microbial testing and heavy metals — but it stops short of disclosing the one thing that proves protein integrity: a full amino acid profile. Select adds leucine peptides “to maximize muscle-building potential,” yet never reveals the amount. Without verified leucine totals, you’re trusting the brand’s word rather than seeing the science for yourself.

The formula also leans heavily on milk protein isolate — a slower-digesting base that’s great for satiety and evening shakes but delivers a softer anabolic response after training. It’s positioned as “zero fillers,” but missing amino data means the real filler might be the uncertainty between what’s claimed and what’s proven.

Bottom line: Select Protein from PEScience LLC is built for people who want a crave-worthy shake and a casual protein routine. If your priority is taste and texture, PEScience protein delivers exactly what it advertises. If your priority is verified muscle-building efficiency and full transparency, you’ll find better proof elsewhere.

🔑 Where to Buy PEScience Protein Powder? TL;DR

For this PEScience Protein Review, I purchased PEScience Select Protein Powder on Amazon — because convenience wins. Prime members get speed, weekend delivery, and the “one-box” simplicity that keeps life moving. It’s the easiest way to try PEScience Whey Protein without overthinking it.

Buying direct from PEScience Supplements does bring perks Amazon can’t match. You get subscription savings (“SUB10” knocks 10% off every recurring order) and a PEScience military discount through GovX ID — the best long-term value if you’re loyal to Select Protein. But flavor exploration isn’t risk-free. Open the tub and decide you’d rather not drink the Chocolate Peppermint surprise? There’s no true taste guarantee. At best, you may get store credit.

Amazon avoids the subscription math — but also sidesteps that opened-product refund dance entirely. The price is lower upfront, fast shipping is locked in, and if you’re already grabbing essentials, your protein just tags along for the ride.

Bottom Line: First-time buyer? Amazon. Returning fan? PEScience Select Protein direct — especially if the discounts stack in your favor.

🛒 Where to Buy PEScience Protein Powder?

For this PEScience Protein Review, I purchased PEScience Select Protein Powder directly from Amazon — mostly for convenience. Prime shipping is fast, weekend delivery is included, and if you’re grabbing other supplements, it all lands in one box. Simple.

But it’s not the only place to buy PEScience Whey Protein. Ordering directly from the brand has its own perks — including access to the PEScience military discount through GovX ID and subscription pricing. Here’s the breakdown:

Where to Buy PEScience Protein Powder
Retailer	PEScience	Amazon
Shipping & Handling	Free S&H on orders $15+Limited international on $150+	Prime Members get free 2-day shipping
Subscription Savings	“Subscribe” option with 10% off using code SUB10	No S&S
Money-Back Guarantee	15-day in-store credit	No returns on supplements
Payment Options	Standard payment options and Sezzle	Standard payment options
Price	$54.99 per container (27 servings)	$43.90 per container (27 servings)
Price per Serving	$1.67 (S&S, $1.50)	$1.63

Direct quote from PEScience FAQ: “Select the ‘Subscribe’ option on the product page… use the discount code SUB10 at checkout to get 10% off the order and all renewing subscription orders.”

So what’s the best option?

If you want the lowest upfront price and fastest delivery, Amazon wins. That’s where I bought this tub for the PEScience Select Protein Reviews series.

But — if you plan on sticking with PEScience Supplements and want recurring orders, the 10% subscription + PEScience military discount through GovX gives the brand’s website a strong edge over time.

Bottom Line: Short-term savings? Amazon. Long-term savings and perks? Buy direct from PEScience Nutrition.

💸 Money-Back Guarantee: What Is the PEScience Return Policy?

If you buy PEScience Select Protein Powder directly from the brand, the return policy is decent if you haven’t opened the tub. You get 30 days to send back a new, sealed item for a full refund — and PEScience covers shipping only when the mistake is on them (wrong flavor, damaged product, etc.).

Where things get sticky is when real life happens:
You try a new flavor. You don’t like it. And now it’s not eligible for a refund. At best, customer service may offer a store credit or product swap, but the opened product becomes your sunk cost — return shipping included.

No taste guarantee. No flavor protection. No “scoop test” grace period. Once that seal breaks, you’re committed.

Bottom Line: Good policy for unopened tubs, but if you’re experimenting with PEScience Nutrition flavors, you’re taking the full financial risk. A premium protein with dessert marketing should trust its flavor enough to offer a better satisfaction guarantee.

Value: 1 of 10.

You’re paying mid-tier protein price for this dessert-style protein. With missing amino data and undisclosed amount of leucine peptide that leans more toward “comfort shake” than muscle-building fuel, the true value only looks good on the label. If flavor is your north star, it delivers. If you care whether every gram in this PEScience Protein Review is doing real work in your muscles, keep reading — the cost of trust gets higher the deeper you dig.

🔑 Does PEScience Have Fillers? TL;DR

PEScience Nutrition’s Select protein offers a clean and streamlined formula, featuring a concise ingredient list and clearly defined macros, which is a commendable aspect! However, there are areas where greater transparency could enhance the product’s appeal. Specifically, for a brand focusing on a milk-protein blend, providing a complete amino acid profile in addition to the general BCAA chart would be incredibly beneficial. 

Additionally, the inclusion of undisclosed leucine peptides and the use of nitrogen-based testing raises questions that potential customers might have. Overall, while the product shows great promise, increased clarity on these aspects could build even more trust and excitement among consumers!

Bottom Line: This isn’t the kind of filler you can circle on an ingredient list. It’s the absence of transparency itself—and with this formula, that silence is doing the heavy lifting.

⚛️ Does PEScience Have Fillers?

The real question isn’t whether PEScience uses gums or flavoring oils. It’s whether their formula leaves enough gray area for the protein count to be inflated—intentionally or not. When you dig into the label, their articles, and their customer support responses, three pieces of evidence stand out.

Three strongest indicators of amino spiking in P Science Protein Powder:

1. No full amino acid profile provided.
   PEScience does not release batch-level amino data. Without exact BCAA totals or a complete amino table, you can’t confirm the true protein yield or verify what’s naturally occurring vs. added.
2. Added leucine peptides with no disclosed amount.
   PepForm leucine is added to the blend. PEScience admits this but refuses to state how many grams. That matters because leucine registers strongly on nitrogen-based protein tests—and without the number, you can’t confirm whether the 24g count reflects real protein or additive nitrogen.
3. Kjeldahl nitrogen testing can artificially inflate protein numbers.
   Under FDA rules, nitrogen-based compounds—including those hidden under “natural and artificial flavors”—can be read as protein on standard tests. Compounds like taurine or glycine don’t build muscle, but they do increase the nitrogen score. Without a detailed amino acid breakdown, there’s no way to rule this out in P Science Protein Powder.

Taken together, these three points don’t prove amino spiking—but they paint a picture that’s hard to ignore. And the first place to look closely is the missing amino acid profile.

🚩 Why Doesn’t PEScience Casein Show a Full Amino Acid Profile?

Here’s the uncomfortable truth: When a brand like PEScience Casein doesn’t provide a complete amino acid profile, you’re not just missing some minor details—you’re missing crucial information that verifies the protein you’re purchasing is actually what you’re getting. Evaluating a whey-casein blend should be straightforward, but PEScience Casein only offers a general estimate of BCAAs and nothing more specific. This lack of transparency creates too much uncertainty between the numbers and the overall story the brand wants to tell.

Without a complete amino acid table, you can’t verify the amount of naturally occurring leucine in each scoop, how the casein-to-whey ratio compares, or whether the added PepForm peptides are artificially inflating the nitrogen score. Evaluating a whey-casein blend should be straightforward, but PEScience Casein only offers a general estimate of BCAAs and nothing more specific. This lack of transparency creates too much uncertainty between the numbers and the overall story the brand wants to tell. (British Journal of Nutrition).

That academic finding is exactly why the missing data becomes a red flag. When a protein brand adds leucine on top of the blend—but doesn’t disclose how much—you’re left guessing whether the “24g protein” represents a complete amino profile or a boosted nitrogen score. And if you’re buying PEScience Casein for consistent shake smoothness, blend consistency, and reliable protein efficiency, you deserve more than guesswork.

A protein powder doesn’t need thickeners to be considered “filled.” It only needs enough missing information to prevent you from verifying the quality. And with PEScience Casein, that starts with the absent amino acid profile.

🚩 Why Does PES Whey Protein Add Leucine Peptides Without Listing the Amount?

Here’s where PES Whey Protein crosses from clever formulation into avoidable ambiguity. Adding leucine peptides isn’t inherently a problem—in fact, leucine is the amino acid most responsible for triggering muscle protein synthesis. PEScience even published an article explaining that leucine is the “anabolic trigger,” and most whey proteins undershoot the 3–5 g threshold needed to stimulate MPS effectively. Their piece claims that fortifying a protein blend with PepForm peptides “maximizes muscle-building potential” by pushing that threshold higher (PEScience Blog).

But here’s the catch: PES Whey Protein never tells you how much leucine they’re adding. Without that disclosure, you can’t tell whether the leucine is enhancing the blend—or quietly inflating the nitrogen score used to calculate total protein. That matters because nitrogen-based protein testing (Kjeldahl) counts all nitrogenous compounds as protein, including added peptides. Exciting research shows that adding 3g to 5g of leucine can really boost muscle protein synthesis after meals (Journal of Physiology)! However, when brands include leucine without sharing the specific amount, it can leave customers guessing.

When a brand adds leucine but refuses to disclose the grams, it forces the buyer to work backward from macros, label claims, and ingredient order. And with PES Whey Protein already using a whey–casein blend—where naturally occurring leucine content shifts depending on milk fractionation—precision becomes even more important for anyone judging shake smoothness, blend consistency, or actual protein yield.

In short, added leucine isn’t the issue. Missing transparency is. And PES Whey Protein leaves just enough room in that silence for the protein count to look better on paper than it may be in your shaker.

🚩 Why PE Select Protein May Show Inflated Numbers From Nitrogen Testing

Most people assume the protein number on a label reflects the actual grams of complete protein in the scoop. But with PE Select Protein, the story isn’t that simple. As shared in an article by Data Horizon Research, the food industry still relies heavily on Kjeldahl-based nitrogen testing as a regulatory reference method for determining crude protein, even though it measures total nitrogen rather than biologically available protein.

Anything that contains nitrogen registers as protein, even if it contributes nothing to muscle protein synthesis. That’s where blends like PE Select Protein can slip into murky territory.

Casein–whey blends naturally vary in nitrogen density, and when you layer added leucine peptides, flavor carriers, and other nitrogenous compounds into the formula, the final number can skew upward. A review published in the AOCS Journal of the American Oil Chemists’ Society found that nitrogen-based protein tests often overestimate the actual protein content. This overestimation occurs because of the presence of non-protein nitrogen and the use of incorrect conversion factors, which can inflate the test results.

This is why the FDA still allows manufacturers to report protein based solely on nitrogen content rather than verified amino acid profiles—an approach the agency explicitly references in its compliance documentation for protein claims, acknowledging that “nitrogen content is used to calculate protein per serving,” even when nitrogen doesn’t originate from actual protein chains (FDA Compliance Policy Guide).

For PEScience, the concern isn’t simply that the formula lists “natural and artificial flavors.” Under U.S. label law (21 CFR 101.22), manufacturers are allowed to declare flavors generically (“natural flavor,” “artificial flavor,” or both) without revealing the exact chemical or botanical composition behind them. That means a “natural and artificial flavor” label might mask dozens of nitrogen-bearing flavoring agents — each of which could register as “protein” under nitrogen-based testing. 

Without a full amino acid breakdown, there’s no way to distinguish between genuine milk-derived protein and nitrogen from flavor additives or peptide spiking. In this context, that broad, legal flavor label becomes part of the filler — not in the sense of gums or bulking agents, but in the sense of hidden nitrogen leverage that inflates protein claims.

In summary, the use of somewhat ambiguous flavor declarations may lead to discrepancies in the Nutrition Facts panel regarding the actual anabolic protein yield in PEScience proteins. Furthermore, nitrogen testing can illuminate this regulatory nuance, raising some questions about credibility.

🏋️‍♂️ What Is PE Select Protein Actually Best Used For?

Select Protein is marketed as the every-situation protein—good for breakfast, good after training, good whenever you need it. But once you look past the label copy and examine what’s actually in the tub, the formula tells a clearer story. This is a casein-dominant milk protein isolate blend with a touch of whey concentrate. What does that mean? PE Select is a slow-digesting meal replacement, then a post-workout shake. That distinction matters if you’re deciding whether Select Protein should live in your post-workout shaker or stand in as a small meal.

So when is this blend at its best? As a meal replacement, snack bridge, nighttime shake, or anytime comfort protein. You get longer fullness, smoother blend consistency, and more gradual amino acid delivery.

Can you use Select Protein after a workout? Sure. But the formula isn’t designed to fire quickly on its own—especially with a lower inherent leucine density. That’s why dosing becomes the real question, not whether you can use it post-workout.

💪 How Many Scoops of Select Whey Protein Do You Need After a Workout?

If there’s one area where label uncertainty becomes a real problem, it’s post-workout dosing. Select Whey Protein already carries three major red flags: no amino acid profile, added leucine peptides with undisclosed amounts, and the possibility of nitrogen-based inflation on the “24 g protein” claim. That means you can’t assume a single scoop delivers enough usable protein—or enough leucine—to stimulate recovery.

Milk protein isolate digests slowly and produces a weaker, flatter rise in muscle protein synthesis than fast whey. Tipton’s study in the Journal of Applied Physiology showed that whey rapidly spikes MPS. Research indicates that casein-heavy protein blends provide a slower, more gradual response in the body, necessitating a higher total protein intake to achieve similar outcomes compared to other protein sources (Journal of Applied Physiology). Additionally, a study by Tang et al. revealed that milk-based proteins, such as Select Whey Protein, result in significantly lower leucine peaks than protein isolates (Journal of Applied Physiology).

Here’s the anchor point: The ISSN recommends 2.5–3.0 g of leucine per feeding to activate maximal MPS in fast-digesting whey isolates reliably. Since Select Whey Protein is casein-dominant and refuses to disclose leucine content, a single scoop almost certainly falls short of that requirement.

USDA data indicate that high-protein skim milk contains 13 grams of protein and approximately 1.3 grams of leucine. This composition closely resembles the natural leucine density typically found in clean dairy proteins. To safeguard against potential amino spiking, consider mixing Select Whey Protein with a cup of high-protein skim milk instead of water.You’re adding actual, verifiable protein and a predictable leucine dose—something the tub doesn’t guarantee.

Factor in amino-spiking concerns, and the true usable protein may be closer to 15–20 g per scoop—not 24 g.

Practical Dose: To reliably hit the leucine threshold and compensate for casein’s slower digestion, most lifters will need 1.5 to 2 scoops of Select Whey Protein post-workout mixed with HP skim milk.

🌙 How Much Select Protein Powder Should You Take Before Bed?

Suppose you’re drinking Select Protein Powder before bed. In that case, you’re already using it the way casein-dominant blends perform best: slow digestion, gradual amino release, and a steady trickle of building blocks while you sleep. But the question isn’t whether to use it at night—it’s how much you actually need.

Casein is advantageous for recovery during the night because of its gradual absorption rate. To see significant results, a greater total protein intake is necessary. A well-cited study by Res et al. found that a 40-gram dose of casein significantly increased overnight muscle protein synthesis, whereas smaller servings had minimal impact (MSSE). Since Select Protein Powder contains milk protein isolate—similar to the casein-rich foundation—it follows this same digestion pattern: slower release, reduced leucine spikes, and a greater amount required to produce noticeable effects.

And here’s where things get complicated. Because Select Protein Powder doesn’t publish a full amino acid profile and uses added leucine peptides with no disclosed amounts, you have no guarantee that a single scoop contains the leucine needed for overnight MPS. Research reinforces that slow proteins produce a smaller anabolic response than whey, requiring larger doses to compensate (JAP). Factor in possible nitrogen inflation, and the true usable protein per scoop may be meaningfully lower than the label’s 24 g.

Practical Dose: Boost your overnight recovery by blending 1.5 to 2 scoops of Select Protein Powder with 8 to 12 ounces of high-protein skim milk! This delightful combination not only adds around 13 grams of real protein but also includes about 1.3 grams of leucine—helping you hit that ideal nighttime goal of 30 to 40 grams of protein. Plus, this mix addresses any labeling concerns with Select Protein Powder while promoting gentle, steady casein digestion. 

🥤 How Much PEScience Whey Should You Use as a Meal Replacement?

When you frame PEScience Whey as a meal replacement, the question isn’t “Will it spike MPS like a post-workout shake?”—it’s “Will it keep you full, support steady amino availability, and actually substitute for a meal without crashing blood sugar or appetite?” That’s where a whey–casein blend like PEScience Whey behaves very differently from a pure isolate.

Research indicates that both the rate of digestion and other factors—such as dosage, food matrix, and hormones—affect feelings of fullness (satiety), not just the speed of digestion alone. This variation in digestion speed is what a milk-protein-based formulation, such as PEScience Whey, seeks to mimic.

The protein density of this blend is questionable, and the leucine content has not been disclosed, raising concerns about the potential for amino spiking. Without a complete amino acid profile and given the presence of added leucine peptides, you cannot assume that one scoop of PEScience Whey provides 24 grams of complete protein. Consequently, it is important not to equate a scoop of this product with a scoop of a true whey isolate.

Practical Dose: To use PEScience Whey as a meal replacement, treat it as a blend with uncertain protein quality. Use 1.5–2 scoops with high-protein skim milk instead of just one scoop in water to ensure satiety and avoid underdosing, as the protein quality is unknown.

Amino Spiking: 2 out of 10. 

A PEscience whey-casein blend should clarify the contents of a scoop; however, the brand does not provide a complete amino acid profile, the amount of added leucine peptides, or 3rd party protein verification.

🔑 Is PEScience Third-Party Tested? TL;DR

But testing has levels — and for this PEScience Protein Review, the missing piece is the one that would confirm actual protein integrity. There is no published amino acid profile, no verified leucine count, and no certification like Informed Protein that proves all 24g of protein per scoop are complete, muscle-building protein, not nitrogen-inflated numbers.

So is PEScience third-party tested for what most buyers worry about — banned substances, purity, and safety? Yes.
Is PEScience third-party tested to verify amino quality and protein claims? No.

Bottom Line: Is PEScience third-party tested enough to trust safety? Absolutely. Enough to trust the protein count? Not yet — and that’s the data serious athletes actually need.

📜 Is PEScience Third-Party Tested?

PEScience puts real emphasis on validating manufacturing quality — and they do more than most brands in that department. Their published quality control program confirms that both raw materials and finished batches undergo independent analysis before release. As they state on their quality page, they:

“(R)egularly have ourselves audited by a third-party quality control team, and we send third parties to audit any manufacturing partners we work with.”
(PEScience — The PEScience Difference)

That’s not common. Many companies rely only on supplier paperwork, without independent verification. PEScience also manufactures its proteins in NSF-audited facilities, which signals strong adherence to 21 CFR Part 111 standards for dietary supplements.

And the Certificates of Analysis available on Select Protein product pages show legitimate screening for:

• microbial safety
• heavy metal compliance
• accuracy of labeled protein content

Those are meaningful checkpoints for consumer safety.

But here’s where clarity stops short: No published amino acid profile, and no disclosed grams of added leucine. That means buyers can’t verify protein composition at the molecular level — the kind of transparency offered by brands that pursue certifications like Informed Protein.

One more note: PEScience Whey Protein carries a “gluten-free” claim, but it is not gluten-free certified. For most consumers, that won’t matter — but those with medical gluten avoidance rely on independent assurance.

⚠️ Heavy Metals in Protein Powder: Does PEScience Contain Lead?

Daily protein shakes shouldn’t come with long-term toxicity concerns — yet heavy metals remain a documented risk in the supplement industry. As a consumer-health investigation warns, “Heavy metals in protein powders can accumulate in the body, increasing health risks with prolonged exposure, including nervous system damage and kidney harm.” (Salon)

PEScience heavy metal testing appears to address the core contaminants that matter most: lead, arsenic, cadmium, and mercury. Their published CoA for Select Protein confirms that the brand uses ICP-MS testing and reports pass results within FDA-suggested limits. That’s important — especially for shoppers who rely on PEScience Whey Protein as a daily protein source.

The key takeaway: PEScience’s current posted results fall below the legal thresholds that would trigger a Proposition 65 warning in California.

No asterisks, no hidden disclosures — if the metal levels were high enough to require a warning label, the law would force one onto the container. For daily-use supplements, compliance matters far more than the decimal points behind the test results.

🔑 PEScience Select Protein Comparison: How This Formula Stacks Up, TL;DR

When you take a step back and examine the whole landscape, PEScience Select Protein Reviews convey a distinct narrative: great flavors and good mixability, but it lacks some transparency compared to others in its category. In a time when dedicated lifters seek validation — rather than just a milkshake-like smoothness — transparency becomes the critical differentiator.

Here’s how the four brands rank in terms of sourcing credibility, amino acid disclosure, and proof of protein quality from third parties:

1. AGN Roots: This brand is the top choice for protein integrity, transparency, and third-party verification. Every gram of protein is guaranteed. It sets the standard for athletes focused on purity.
2. Transparent Labs:  Not perfect — the “grass-fed” marketing isn’t verified — but still offers more data, more testing, and better amino disclosure than the others.
3. PEScience Select Protein (flavor-forward pick): Likely amino-spiked, but delivers superior taste and milkshake-level thickness. Best choice if you want protein drinks to feel like dessert and don’t mind adding HP skim milk or a bigger scoop to hit MPS.
4. Optimum Nutrition Gold Standard (legacy post-workout pick): You get an amino acid profile and a long-standing reputation — but a watery texture and a reformulated flavor system bump “protein quality” further down the label.

Bottom Line: If you prioritize truth in protein, AGN Roots or Transparent Labs win. If you prioritize flavor and shake experience, PEScience takes the edge over ON — you just need more protein per serving to get the job done.

📊 PEScience Select Protein Comparison: How This Formula Stacks Up

Even the best-looking tub of protein deserves context. A PEScience review doesn’t mean much in isolation — you need to see how this whey–casein blend performs next to the brands lifters actually buy. So instead of cherry-picking weak competition, we’re stacking PEScience Select Protein Powder against three heavy hitters, each chosen for a very specific reason:

AGN Roots
AGN Roots built its entire identity around verified protein efficiency — full amino acid tables, grass-fed sourcing with third-party proof, and dual certifications from Informed Sport and Informed Protein. When consumers ask, “Who actually shows their protein receipts?” — this is the brand you put on the table first. A PEScience review needs AGN Roots as the litmus test for honesty in label claims.

Optimum Nutrition Gold Standard
Nearly every lifter has tried ON at some point — because availability and reputation sell buckets of whey. But legacy isn’t a defense against reformulation. ON Gold Standard recently bumped Natural & Artificial Flavors up to the #2 slot in the ingredient list, raising the same transparency questions PEScience faces. If a protein wants mainstream loyalty, it needs to outperform the category leader.

Transparent Labs Whey
Transparent Labs positions itself as a clean-label brand that offers transparent products. They use Informed Choice and Informed Protein testing to ensure reliable and validated quality. While PEScience markets itself as “premium quality,” Transparent Labs is a premium product.

🆚 How Does PEScience Compare to AGN Roots? PEScience vs AGN Roots

When you stack PEScience vs AGN Roots, you’re really testing two completely different philosophies of protein. PEScience Select Protein is built to taste like dessert — a whey-and-casein blend engineered for creamy texture, slower digestion, and everyday convenience. AGN Roots Grass-Fed Whey, on the other hand, is built for raw purity and performance — a minimal-ingredient formula where every gram of protein is proven and accounted for.

Where AGN Roots excels is where PEScience leaves questions. AGN Roots publishes its complete amino acid table, including 3.05g of leucine per scoop — verified through Informed Protein and Informed Sport certifications. PEScience still asks customers to trust a proprietary blend without batch-specific amino disclosure. In PEScience vs AGN Roots, that missing transparency matters.

Pull back the flavor system — the gums, sweeteners, and added leucine peptides — and you see a comfort protein that may look high-protein on paper, but lacks the verification that serious lifters, tested athletes, and ingredient-snobs expect. AGN Roots gives you the opposite: Irish pasture-raised whey, zero artificial additions, and elite third-party validation.

Below is the full comparison:

PEScience vs AGN Roots Key Differences & Comparison Metrics
Key Differences & Comparison Metrics	PEScience Unflavored	%DV	AGN Roots Unflavored	%DV
Leucine	Requested/Proprietary		3.05g(Informed Protein verified)
Leucine Percent	Leucine is a listed ingredient		12.2%
Total BCAAs	5.0g		6.5g
Protein per Serving	23g	46%	25g	50%
Carbs per Serving	2g	1%	1g	0%
Fiber per Serving	0g	0%	0g	0%
Total Sugars	1g	—	0g	—
Calories	110 kcal		110 kcal
Serving Size	29.5g		29g
Number of Servings	27		15
Price*(November 2025)	$34.99		$29.99
Price per Serving	$1.30		$2.00
*Amazon pricing — supports my work through affiliate earnings when you shop using my link to buy AGN Roots Grass-Fed Whey on Amazon.

Bottom Line: If you want a comfort protein that blends thick, tastes sweet, and checks the “protein powder” box, PEScience Select Protein works. But in the PEScience vs AGN Roots matchup, only one brand proves every gram of protein is real, biologically useful, and independently verified. For athletes, label-readers, and anyone prioritizing true protein efficiency — AGN Roots wins in a landslide.

Check out my full written review of AGN Roots here

🆚 Whey Protein Powder Comparison: Is PEScience Better Than Optimum Nutrition?

When comparing PEScience and Optimum Nutrition, shoppers want to know which protein has better quality instead of just focusing on taste or marketing claims. Optimum Nutrition Gold Standard Whey is a well-known product with a strong reputation. However, its 2025 reformulation raised concerns because “Natural & Artificial Flavors” is now listed second on the label. That shift signals a more flavor system, less protein integrity.

PEScience Select Protein ranks Natural & Artificial Flavors lower on its ingredient list, but it still has transparency issues. The brand does not provide a complete profile of amino acids and mainly focuses on flavors and keeping customers loyal. ON provides about 2.6 grams of leucine, which helps customers understand their options. This leads to a question: which brand seems more trustworthy? One that has a long history and smaller profits, or one that focuses on flavor but doesn’t share all the protein details?

You can read my old Optimum Nutrition Gold Standard review breakdown. If you want the complete head-to-head, read my PEScience vs Optimum Nutrition comparison. Here’s a quck stack up head-to-head:

PEScience vs Optimum Nutrition Key Differences & Comparison Metrics
Key Differences & Comparison Metrics	PEScience Gourment Vanilla	%DV	ON Gold Standard Vanilla Ice Cream	%DV
Leucine (g)	Requested/Proprietary		2.6g
Leucine Percent (%)	Leucine is a listed ingredient		10.83%
Total BCAAs (g)	5.0g		5.5g
Protein per Serving (g)	24g	47%	24g	48%
Carbs per Serving (g)	2.5g	<1%	4g	1%
Fiber per Serving (g)	0g	0%	0g	0%
Total Sugars (g)	1g	—	1g	—
Calories	120 kcal		120 kcal
Serving Size (g)	31g		31g
Number of Servings	27		29
Price*(November 2025)	$44.99		$39.04
Price per Serving	$1.67		$1.34
*Amazon pricing — supports my work through affiliate earnings when you shop using my link to buy ON Gold Standard Whey on Amazon.

🆚 Whey Protein Powder Comparison: Is PEScience Better Than Transparent Labs?

When comparing PEScience vs Transparent Labs, you quickly see two brands that talk a big transparency game — but one delivers more actual disclosure. Transparent Labs markets Grass-Fed Whey like it’s the cleanest protein in the aisle. But as I explain in my Transparent Labs Grass-Fed Whey Review, their “grass-fed” claim has zero third-party verification — no label seal, no sourcing certificate, no proof. It’s marketing language, not substantiated sourcing.

If you want my full breakdown, visit PEScience vs Transparent Labs.

What Transparent Labs does have going for it is testing. They’re Informed Choice and Informed Protein verified, which confirms label accuracy and protects athletes from banned substances. In the protein blend powder category, that matters far more than pasture buzzwords. And unlike PEScience, TL publishes real leucine numbers — an inflated 2.8g per scoop.

But here’s the curveball: that impressive 28g protein claim? It’s inflated. FDA math is clear — %DV uses a 50g baseline. Transparent Labs lists 50% DV, which equals 25g, leaving 3g unverified. And for a product advertising itself as high-quality, grass-fed whey protein, a low leucine percentage suggests cheaper whey fractions in the mix.

So PEScience hides the numbers. Transparent Labs shows the numbers… and those numbers raise questions.

PEScience vs Transparent Labs Key Differences & Comparison Metrics
Key Differences & Comparison Metrics	PEScience Gourment Vanilla	%DV	Transparent Labs French Vanilla	%DV
Leucine (g)	Requested/Proprietary		2.8g (Informed Protein Verified)
Leucine Percent (%)	Leucine is a listed ingredient		10.00%
Total BCAAs (g)	5.0g		5.9g
Protein per Serving (g)	24g	47%	28g	50%
Carbs per Serving (g)	2.5g	<1%	1g	0%
Fiber per Serving (g)	0g	0%	0g	0%
Total Sugars (g)	1g	—	1g	—
Calories	120 kcal		130 kcal
Serving Size (g)	31g		34.3g
Number of Servings	27		30
Amazon Price(November 2025)	$44.99		$59.99
Price per Serving	$1.67		$2.00
*Amazon pricing — supports my work through affiliate earnings when you shop using my link to buy Transparent Labs on Amazon.

Bottom Line: If the choice is PEScience vs Transparent Labs, the win goes to Transparent Labs — not because they’re perfect, but because they prove more. Informed testing and real numbers beat secrecy every time.

PEScience may taste better. But Transparent Labs is the more trustworthy protein for lifters who demand verified protein efficiency instead of flavor-forward distraction.

⭐️ Amazon Whey Protein Review: PEScience Select Protein Reviews From Verified Buyers

If you judge a protein by its fan club, PEscience Select Protein Reviews paint a strong picture. With 12,885+ global ratings and an average of 4.4 out of 5 stars, this blend clearly has a loyal following — especially in the flavor- and dessert-style protein world.

What the 5-Star Fans Love

• “Chocolate Cupcake… noticeably sweeter… with peanut butter, we are talking full on Reese’s protein shake… incredible and feels indulgent…”
• “I think I’m literally going to cry I’m so happy with this stuff… tastes great, blends beautifully… I think I found my new protein home.”
• “Absolutely love this brand… Works great making protein pancakes… doesn’t make me bloat… Great price… just got the new Pumpkin Pie flavor too!”

Common thread? PEscience Select Protein Reviews consistently praise flavor, sweetness, and creamy texture — especially when used in recipes like shakes, yogurt, and high-protein pancakes.

This is a “fun protein” — not just nutrition, but nostalgia.

What the 1-Star Crowd Warns About

1. “VERY chalky… weird after-taste… halfway through the shake there is an AWFUL bitterness… big waste of money.”
2. “Stay away from Lot 250617A Gourmet Vanilla… tasted like a chalky drywall… didn’t mix well… company won’t do anything about it.”
3. “Tasted great… but it made me throw up FOUR times… batch was bad or what but very disappointed after buying the bulk one.”

These reviews highlight three issues:

1. Batch inconsistency (especially Gourmet Vanilla)
2. Texture complaints — chalky or clumpy if not mixed aggressively
3. Digestive reactions — rare, but loud when they happen

Taste expectations are at an all-time high. If a batch fails? Customers will speak up. 

In my opinion, many Select Protein enthusiasts perceive this product as a dessert protein, and the sweet flavor profiles support that notion. However, unfavorable reviews regarding chalkiness correspond with what we observe in the formulation — a casein-first blend inherently carries the risk of creating a thicker shake. However, I did not experience that issue.

🥤 What’s the Best Way to Mix PEScience Select Protein Powder?

PEScience Select Protein offers some flexibility, depending on what you want from your shake. The brand suggests one scoop with ~8 oz of cold water — simple, quick, and it works. The blend dissolves cleanly, no stubborn clumps swirling around the shaker like gravel. Even with less water for a richer flavor, mixability stays smooth — that’s the casein–whey blend doing its job.

But if you care about muscle protein synthesis, the instructions could use an asterisk. With Pescience Select Protein carrying some amino transparency concerns and no disclosed leucine total, sticking with water alone isn’t always the smartest play. Mixing with high-protein skim milk adds real, verifiable dairy protein and about 1.3 g extra leucine per cup. Combine that with 1.5–2 scoops, and you’re far more likely to hit the research-backed leucine threshold needed to flip the “building muscle” switch.

Pescience Select Protein is at its best when treated like a slow-digesting, flavor-forward shake — not as a post-workout shake. If you’re taking it for recovery or satiety, give the formula the support it needs to perform: high-protein skim milk.

⚖️ What Is the Scoop Size for PEScience Select Protein?

Go light on the scoop, going to the top of the scoop means you’re getting more than a serving.

👌 PEScience Select Protein Review: Does It Taste Good?

If flavor is a deciding factor, PEScience Select Protein Powder deserves to be in the conversation. This isn’t a “choke it down and move on” protein — it’s intentionally formulated to taste like dessert. Their PEScience Chocolate Truffle flavor smells like a gourmet chocolate shop the moment you open the tub. In a shaker, it turns into a creamy, mousse-like shake that feels more indulgent than macro-friendly. Not quite the flavor-fantasy tier of Pro Jym or BSN Syntha-6, but confidently one tier below.

PEScience Chocolate Mint Cookie hits that dessert-mint profile without drifting into toothpaste territory. Mint lovers will appreciate the accuracy. There’s no crunch — you’re not getting cookie chunks — but the flavor lands where it promises. The only trade-off: a slightly artificial aroma that carries a touch into the taste. Not a deal-breaker — just something trained palates will notice.

What both flavors share is fantastic shake smoothness and a thicker-than-average body thanks to the casein–whey blend. If you’re a flavor chaser who wants a shake that actually feels like a milkshake — not a flavored water — PEScience Select Protein Powder plays directly to that crowd.

For continuity, earlier Select flavors I reviewed — Strawberry Cheesecake and Cake Pop — showed PEScience isn’t perfect with fruit profiles, but chocolate-leaning flavors remain their strongest lane.

Mixability: 10 out of 10.

Pescience Select Protein mixes like it was built for people who refuse to babysit a shaker bottle — powder hits liquid and simply vanishes. No chalk, no stubborn clumps, just a smooth, shaker-friendly consistency every single time. 

And the best part? That flawless mixability doesn’t water down the experience — the whey–casein blend keeps the shake creamy and dessert-like, letting those rich chocolate flavors actually taste like chocolate rather than flavored grit.

🔑 What Ingredients Are in PEScience Select Protein? TL;DR

If you care about both taste, PEScience Select Protein Powder is a great choice. It offers a milkshake-like texture and mixes well, making it enjoyable to drink. The base is a milk protein isolate blend (mostly casein, some whey), which gives Select Protein Powder its trademark creamy texture and slower digestion — ideal for satiety and evening shakes.

Where the formula shines is consistency: no oily separation, no gritty clumps. Ingredients like tapioca starch, guar gum, and cocoa butter give Select that fuller shake body you don’t get from pure whey isolates.

Where the ingredients raise questions: PEScience Select also adds leucine peptides but never discloses how much, and with no public amino acid profile, you can’t confirm how much usable protein you’re getting. PEScience aims to provide great taste, texture, and daily drinkability in their products. However, they are not as transparent as some brands that focus on performance.

Bottom Line: If you prefer shakes that taste like dessert and don’t mind less strict ingredient sourcing or amino disclosure, PEScience has a good ingredient list. However, if you want verified purity and complete protein information, PEScience Select does not fully meet those expectations.

📋 What Ingredients Are in PEScience Select Protein?

For those buyers who prioritize labels over marketing hype, PEScience ingredients immediately showcases value. They designed Select Protein to not only taste like a delightful dessert but also to have the smoothness of a milkshake, and the formulation truly reflects that. You get a casein-forward milk protein isolate paired with whey concentrate — a blend that digests more slowly and gives that thick, satisfying shake most water-based proteins struggle to deliver.

But where the formula excels in flavor and texture, it raises questions about protein transparency. PEScience adds leucine peptides but never discloses the actual amount — not ideal when leucine is the amino acid responsible for triggering muscle protein synthesis. And the inclusion of both natural and artificial flavors near the top of the list pushes the focus toward taste first, verified protein quality second.

Bottom line? PEScience appears to focus on creating a protein product that has a rich and creamy texture, a sweet taste, and a smooth feel, similar to treats you might find at a dessert shop. However, some people are concerned because the product doesn’t provide a complete breakdown of its amino acids, and there’s no independent confirmation of how much protein it actually contains. This makes some individuals question whether the protein content claims are accurate..

Here’s the breakdown for the two flavors tested in this PEScience Select Protein review — ingredients and their purpose:

PEScience Chocolate Truffle Ingredient List
Ingredient	Purpose
Milk Protein Isolate (casein + whey)	Slower-digesting protein that offers a lower amount of lactose when compared to casein
Whey Protein Concentrate (80%)	Fast-digesting protein for immediate recovery after a workout
Leucine Peptides	Potential MPS, an unknown amount is used
Cocoa Powder (alkalized)	Chocolate flavoring
Cocoa Butter	Rich flavoring
Coconut Oil	Contributes to smoothness/flavoring
Tapioca Starch	Contributes to texture & shake thickness
Tapioca Fiber	Contributes to mouthfeel & smoothness
Natural & Artificial Flavor	Flavoring, but adds transparency concerns
Salt	Flavoring
Guar Gum	Prevents watery shakes and separation, responsible for the milkshake-like texture
Sucralose	Zero-calorie artificial sweetener
Acesfulmate Potassium	Zero-calorie artificial sweetener

PEScience Chocolate Mint Cookie Ingredient List
Ingredient	Purpose
Milk Protein Isolate (casein + whey)	Slower-digesting protein that offers a lower amount of lactose when compared to casein
Whey Protein Concentrate (80%)	Fast-digesting protein for immediate recovery after a workout
Leucine Peptides	Potential MPS, an unknown amount is used
Natural & Artificial Flavor	Flavoring, but adds transparency concerns
Cocoa Powder (alkalized)	Chocolate flavoring
Salt	Flavoring
Guar Gum	Prevents watery shakes and separation, responsible for the milkshake-like texture
Sucralose	Zero-calorie artificial sweetener
Acesfulmate Potassium	Zero-calorie artificial sweetener

🌍 Where Does PEScience Source Their Whey Protein?

When you buy PE Select Protein Powder, you expect the basics: clear sourcing, honest labeling, and a protein that tells you exactly where it comes from. That’s not asking for much. It’s the bare minimum for any brand claiming “premium quality.”

But “Manufactured in the USA” isn’t the whole story—not in supplements, and not under federal law.

According to the Federal Trade Commission (“Made in USA” Standard), a product may be advertised as “Made in USA” only if it is “all or virtually all” made in the U.S.—meaning the final assembly or processing occurs domestically, and foreign content is minimal. That’s the governing rule behind the label, and it’s why a tub of PE Select Protein Powder can look entirely American while still relying on domestic and international ingredients upstream.

When I asked PEScience where their whey and milk proteins actually originate, the answer was polite but vague. They said they try to source their ingredients from the U.S. whenever possible, but some ingredients just aren’t available here. While that makes sense, it doesn’t really help us know exactly where each ingredient comes from. For example, we don’t know whether the whey protein is sourced from within the U.S., where the PepForm peptides are sourced, who makes their Milk Protein Isolate, or whether these sources are the same every time they produce a new batch. It’s like getting a list of ingredients without really knowing what each one means.

The next important question is: Does PEScience offer a Certificate of Analysis to show the quality and source of their ingredients?

Not one that answers what matters. Their product pages reference third-party testing for purity and contaminants, as well as heavy metal results. However, no sourcing confirmation, BCAA values, or amino acid data are provided. No lab name. No documentation. Nothing lets you verify how PE Select Protein Powder is built behind the scenes.

• So the label gives you the stamp.
• The brand gives you the talking points.
• But the sourcing itself remains behind a curtain.

For a protein marketed as premium, a clear COA and a verified sourcing statement aren’t luxuries—they’re basic transparency. Until PEScience provides them, sourcing falls into the same gray zone as the amino acid profile: claimed but not confirmed.

Ingredients List: 8.5 out of 10.
PEScience Select Protein ingredients list is minimal. Manufactured in NSF-audited facilities, the product avoids prop-65 chemicals and does not use silicon dioxide to mask mixability issues.

The biggest concern with the ingredient list is the lack of specific sourcing details. In turn, this makes consumers rely on brand reputation for quality verification. The ingredient list is well-crafted, but selective disclosure may limit trust for some buyers.

🔑 PEScience Select Protein Nutrition Facts Breakdown, TL;DR

PEScience Select Protein Powder is a great addition to anyone’s daily routine, offering low calories and carbs, reasonable sodium, and 23 to 24 grams of protein per scoop. In a brand built around a slower-digesting milk protein system, that lack of amino disclosure leaves buyers guessing whether every scoop of PEScience Select delivers enough muscle-building power… or just tastes as it does.

Across the lineup, PEScience Select Protein Reviews consistently show protein density in the 70–77% range — a sign of a flavor-driven formula with a bit more thickening system than performance purists expect. Nothing alarming, but nothing confirming that “24 g protein” is truly a complete protein either.

Bottom Line: Macro structure is strong, shake smoothness is elite, but the nutrition facts still rely more on PEScience’s trust than on its transparency. Great numbers at first glance — still waiting for the proof behind them.

🥗 PEScience Select Protein Nutrition Facts Breakdown

PEScience Select Protein Powder resembles a typical whey-casein blend, but the finer details are important. While the claim of 23–24 grams of protein per serving seems believable, the information on leucine is listed only as “Requested/Proprietary.”

Then there’s the 46–47% Daily Value. FDA math uses a 50g protein baseline, meaning the %DV here suggests 23.5–24g of usable protein. The numbers land in the right neighborhood — but the brand’s amino transparency issues make even minor rounding feel like a bigger question.

Sodium also runs higher than a clean isolate — 230–240mg per scoop. Not harmful, but not “minimal” either. So yes, the macros look great—but you’re trusting the quality behind them rather than verifying it.

Here’s how the two reviewed flavors break down on paper:

PEScience Chocolate Truffle: Full Nutrition Breakdown
Nutrients	Amount per Serving (33g)	% Daily Value (%DV)
Calories	125kcal	—
Total Fat	3g	4%
Sodium (mg)	230mg	10%
Total Carbohydrates (g)	3g	1%
Dietary Fiber (g)	0g	0%
Total Sugars (g)	1g	—
Protein (g)	23g	46%
Leucine	Requested/Proprietary	—
Total BCAAs	5.0g	—
Calcium	265mg	20%
Iron	.5mg	3%
Potassium	50mg	1%

PEScience Chocolate Mint Cookie: Full Nutrition Breakdown
Nutrients	Amount per Serving (32.5)	% Daily Value (%DV)
Calories	120kcal	—
Total Fat	1g	2%
Sodium (mg)	240mg	10
Total Carbohydrates (g)	3g	1%
Dietary Fiber (g)	0g	0%
Total Sugars (g)	2g	—
Protein (g)	24g	47%
Leucine	Requested/Proprietary	—
Total BCAAs	5.0g	—
Calcium	280mg	21%
Iron	.2mg	1%
Potassium	20mg	0%

🍗 PEScience Select Protein: Protein Percentage per Serving & Filler Breakdown

PEScience Select Protein Powder features dessert-style blends with an average protein density of 74% by weight, which is typical for a whey-casein mix but lower than that of pure protein isolates.

A scoop of PEScience Whey Protein may advertise 23–24g of protein, but only about 70–77% of each scoop is real protein — the rest is flavor system, thickening agents, and oils that provide that milkshake-like texture fans rave about.None of that is inherently bad — flavor, shake smoothness, and creamy texture are part of the PEScience review appeal.

When a brand won’t reveal the full amino acid profile or the amount of added leucine peptides, that remaining scoop becomes unclear. Is it effective protein or just nitrogen-padding that looks good on the label but lacks muscle benefit?

Here’s how the numbers shake out:

PEscience Protein Powder Flavors	Protein per Serving (g)	Scoop Size (g)	Protein Percentage (%)
Unflavored	23g	29.5g	78%
Cake Pop	24g	31.5g	76%
Chocolate Truffle	23g	33g	70%
Gourmet Vanilla	24g	31g	77%
Snickerdoodle	24g	31g	77%
Chocolate Peanut Butter	23g	32.5g	71%
Frosted Chocolate Cupcake	24g	33.5g	72%
Cookies N Cream	24g	33.5g	72%
Peanut Butter Cookie	24g	32.5g	72%
Strawberry Cheesecake	24g	32.5g	72%
Perppemint Bark(Seasonal Flavor)	24g	31g	77%
Pumpkin Pie(Seasonal Flavor)	24g	31g	77%
Average Protein Percent Across All PEScience Protein Flavors: 74%

When you account for everything we’ve uncovered in this PEScience review — missing amino data, added leucine without disclosure, and reliance on nitrogen-based testing — the math here doesn’t necessarily disprove amino spiking… but it doesn’t rule it out either. In a category where trust is built on transparency, the space between claimed 24g and verified bioavailable protein becomes the real filler.

Nutrition Facts: 2.0 out of 10. 

There are some concerns with PEScience Select Protein label accuracy. Based on information uncovered in this review, the unlisted amount of leucine is added into the final figure in the Nutrition Facts. The suggested 24 grams of protein per scoop is overstated. With no clear leucine amounts stated, it’s difficult to assess if PEScience Select even meets the threshold for effective muscle recovery

📋Frequently Asked Questions About PEScience Select Protein

🏁 Final Thoughts on PEScience Select Protein

Before you let a pretty label and a milkshake promise talk you into another tub, there are three things this PEScience Protein Review should leave you with about PEScience protein and how it actually behaves in the real world:

1. You’re buying into flavor-first… with protein transparency second.
   PEScience LLC designed PEScience protein powder to deliver dessert-like flavors and a creamy texture from its casein content. However, it does not provide a complete amino acid profile, lacks the total leucine amount, and includes added leucine peptides without specifying their quantity. This lack of detailed information is a key point in the PEScience Protein Review.
2. One scoop rarely tells the whole recovery story.
   This protein blend mainly has slow-digesting milk proteins, and its leucine content is unclear. So, a single 23–24 g scoop may not be enough as a “post-workout serving.” To support muscle growth, use 1.5 to 2 scoops mixed with low-fat milk to ensure adequate protein. PEScience protein is tasty for snacks, but it shouldn’t be your primary source for building muscle.
3. You’re paying a premium for feel, not proof.
   PEScience LLC is known for its great mixability and bold flavors, adhering to NSF-audited standards. However, it lacks transparency about leucine peptides and the amino acid profile. If you prioritize protein integrity, there are better options available. Still, if you’re seeking a protein powder with a dessert-like taste, this product could be a good choice.

✅ Is PEScience Protein Good?

PEScience protein powder offers a pleasurable experience with thick shakes that align well with weight loss goals. However, it could be improved by addressing the absence of certain amino acids and providing clearer information on leucine peptides. Overall, it is a flavorful option worth considering for health and wellness.

Who should actually buy this?

If you care more about shake smoothness, creamy texture, and feeling full throughout the day than about recovering from your workout, PEScience Select perfect for you. It makes a great snack, a bedtime drink, or a comforting protein source for those trying to lose weight. However, if your looking for transparency and high-quality protein. This tub is off your list.

The lack of a full amino acid profile and the hidden leucine content make it nearly impossible to confirm whether a “24 g protein” scoop delivers enough essential amino acids actually to flip the MPS switch. And that’s where the score drops.

The glossy badges on the label — NSF-audited facilities, gluten-free claims — make PEScience protein look high-quality, elite, and athlete-ready. But those badges don’t verify protein integrity. They don’t confirm whether the protein count is real vs nitrogen-inflated. They don’t prove what PEScience LLC implies in their marketing.

In short: amazing taste, questionable truth.

Final Score: 23.5/50 (47%) — Fails to Deliver

Are you looking for more protein reviews? Here are all of JKremmer Fitness’ unbiased protein powder reviews. Are you looking for a protein review that I haven’t done yet? Email me at my ‘Contact Me’ page, and I’ll do my best to get an unbiased review out in 4 weeks. 

🧐 PEScience Protein Review— Summary & Scores

Category	Score
Value	1 out of 10
Amino Spiking	2 out of 10
Mixability	10 out of 10
Ingredient List	8.5 out of 10
Nutrition Facts	2 out of 10
Overall Score	23.5/50, 47%, Fails to Deliver

📑 Sources & References for This PEScience Protein Review

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Automatic Kjeldahl Nitrogen Protein Analyzer Market Size, Trends & Analysis Report – 2033. (n.d.). DataHorizzon Research. https://datahorizzonresearch.com/automatic-kjeldahl-nitrogen-protein-analyzer-market-27060

Complying with the Made in USA Standard. (2024, July 2). Federal Trade Commission. https://www.ftc.gov/business-guidance/resources/complying-made-usa-standard

Halfhelix, T. (2017, August 28). Difference. PEScience. https://pescience.com/pages/difference

Kjeldahl method. (n.d.). https://www.gerhardt.de/en/know-how/analytical-methods/kjeldahl-method/

Kolschowsky, C. (2023, October 8). Leucine in Your Protein – What is it and why does it matter? PEScience. https://pescience.com/blogs/articles/leucine-in-your-protein-what-is-it-and-why-does-it-matter

Krul, E. S. (2019). Calculation of Nitrogen‐to‐Protein Conversion Factors: A Review with a Focus on Soy Protein. Journal of the American Oil Chemists Society, 96(4), 339–364. https://doi.org/10.1002/aocs.12196

Lam, C. (2025, March 4). Understanding Dietary Supplement Regulations: 21 CFR Part 111. cGMP Consulting Inc. https://cgmpconsulting.com/21-cfr-part-111-for-dietary-supplement-makers/

Pal, S., Radavelli-Bagatini, S., Hagger, M., & Ellis, V. (2014). Comparative effects of whey and casein proteins on satiety in overweight and obese individuals: a randomized controlled trial. European Journal of Clinical Nutrition, 68(9), 980–986. https://doi.org/10.1038/ejcn.2014.84

Pardy, C. K., Matyas, J. R., & Zernicke, R. F. (2004). Doxycycline effects on mechanical and morphometrical properties of early- and late-stage osteoarthritic bone following anterior cruciate ligament injury. Journal of Applied Physiology, 97(4), 1254–1260. https://doi.org/10.1152/japplphysiol.00122.2004

Poole, J. (2025, July 9). |. PEScience. https://pescience.com/pages/faq

Rieu, I., Balage, M., Sornet, C., Giraudet, C., Pujos, E., Grizard, J., Mosoni, L., & Dardevet, D. (2006). Leucine supplementation improves muscle protein synthesis in elderly men independently of hyperaminoacidaemia. The Journal of Physiology, 575(1), 305–315. https://doi.org/10.1113/jphysiol.2006.110742

Saha, J. (2025, January 14). Protein powders may contain alarming amounts of lead and cadmium, new investigation finds. Salon.com. https://www.salon.com/2025/01/14/uber-popular-protein-powders-may-contain-alarming-amounts-of-lead-and-cadmium-per-investigation/

Tang, J. E., Moore, D. R., Kujbida, G. W., Tarnopolsky, M. A., & Phillips, S. M. (2009). Ingestion of whey hydrolysate, casein, or soy protein isolate: effects on mixed muscle protein synthesis at rest and following resistance exercise in young men. Journal of Applied Physiology, 107(3), 987–992. https://doi.org/10.1152/japplphysiol.00076.2009

USDA National Nutrient Database for Standard Reference Legacy. (2018). Nutrient content in household measure. https://www.nal.usda.gov/sites/default/files/page-files/leucine.pdf

Xu, Z., Tan, Z., Zhang, Q., Gui, Q., & Yang, Y. (2014). The effectiveness of leucine on muscle protein synthesis, lean body mass and leg lean mass accretion in older people: a systematic review and meta-analysis. British Journal of Nutrition, 113(1), 25–34. https://doi.org/10.1017/s0007114514002475

U.S. Food and Drug Administration. (n.d.). CPG Sec. 555.875 — Protein Label Claims. Retrieved November 28, 2025, from https://www.fda.gov/regulatory-information/search-fda-guidance-documents/cpg-sec-555-875-protein-label-claims

Res, P. T., Groen, B., Pennings, B., Beelen, M., Wallis, G. A., Gijsen, A. P., Senden, J. M., & van Loon, L. J. C. (2012). Protein ingestion before sleep improves post-exercise overnight recovery. Medicine and Science in Sports and Exercise, 44(8), 1560–1569. https://doi.org/10.1249/MSS.0b013e31824cc363