
Transparent Labs
100% Grass-Fed Whey Protein Isolate
A grass-fed whey isolate with 28 g of protein per scoop, stevia instead of artificial sweeteners, and NSF Certified for Sport status.

A premium grass-fed whey isolate with 20 g of protein per 90-calorie scoop, NSF Certified for Sport status and a short, gum-free ingredient list.
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Last reviewed September 29, 2026 by the Nutrition Reviews Editorial Team · How we review
Our verdict
Momentous whey is a top pick for athletes who need certainty: NSF Certified for Sport status, lot-by-lot testing and a minimalist, gum-free formula built on grass-fed isolate. You pay heavily for that assurance and get only 20 g of protein per scoop, so value-focused lifters will find better deals elsewhere.
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Our five-factor score out of 10. Factors are weighted by how much they matter to the outcome you’re paying for. Methodology
out of 10
Key ingredients at clinically studied doses, and how strong the evidence is.
Third-party testing and certifications, manufacturing standards, contaminant testing, recall history.
Cost per effective serving compared with category peers.
Taste, mixability, texture and tolerability from aggregated buyer and creator feedback.
Full label disclosure (no proprietary blends), available COAs, honest marketing.
Momentous positions itself as a performance brand for elite athletes, and its whey isolate sells on purity rather than flavor. The powder uses grass-fed whey protein isolate from European dairy farms, cold-processed and microfiltered according to the brand, with the ProHydrolase enzyme blend added. A 25 g scoop of Vanilla delivers 20 g of protein and 90 calories, and the rest of the ingredient list is natural flavors, salt, monk fruit extract and stevia, with no gums or artificial sweeteners. The Unflavored version is simply whey isolate plus enzymes.
Twenty grams sits at the lower end of what research suggests for a strong post-workout muscle protein synthesis response, particularly for larger or older lifters, so some users will want a heaping scoop or a second serving. Evidence that added protease enzymes meaningfully improve results in healthy adults is limited, so ProHydrolase is better viewed as a small extra than a reason to buy.
Verification is where Momentous leads. NSF's Certified for Sport database lists the Essential Grass-Fed Whey line, and the company says every production lot is independently tested, with certificates of analysis published online. That makes it one of the safest picks for drug-tested athletes.
The trade-off is cost: $59.99 for 25 servings works out to about $2.40 per serving, or roughly 12 cents per gram of protein, although the brand's subscription discount lowers that. buyer ratings sit around 4.2 to 4.4 stars, with praise for quality and easy digestion and split opinions on taste, mixing and a recent reformulation.
| Key ingredient | Per serving | Why it matters |
|---|---|---|
| Grass-fed whey protein isolate Sourced from European grass-fed cows, per the brand; provides all essential amino acids. | 23.3 g (20 g protein) | Sourced from European grass-fed cows, per the brand; provides all essential amino acids. |
| ProHydrolase (protease enzyme blend) Added to support protein digestion; evidence for performance benefits in healthy adults is limited. | 200 mg | Added to support protein digestion; evidence for performance benefits in healthy adults is limited. |
| Monk fruit extract and stevia Natural non-nutritive sweeteners in the Vanilla and Chocolate flavors; the Unflavored version has none. | — | Natural non-nutritive sweeteners in the Vanilla and Chocolate flavors; the Unflavored version has none. |
Flavors & variants
Testing & quality
Says every production lot is independently tested and publishes certificates of analysis; its whey protein is listed in NSF's Certified for Sport database.
Goals it supports
Independent creators reviewing Grass-Fed Whey Protein Isolate on TikTok and YouTube.
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