Transparent Labs Grass-Fed Whey Protein Isolate
A grass-fed whey isolate with published per-batch lab results and both Informed Choice and Informed Protein certification, at $59.99 for 2 lb.
The whey isolate that publishes its lab work instead of asking for trust.
Price: $59.99–$99.99 · Verified: 2026-08-05
The whey isolate that publishes its lab work instead of asking for trust.
Transparent Labs earns its name the mechanical way: every batch is third-party tested and the certificates of analysis are published on the site, alongside certification from both Informed Choice and Informed Protein. The isolate itself is sourced from grass-fed American dairy cattle raised without growth hormone, delivers 28 g of protein per serving at a stated 87.5 percent protein by weight (the brand notes this varies by flavor), and contains no artificial sweeteners, dyes or preservatives. That documentation stack is the differentiator: none of the supplement incumbents we card pair published per-batch COAs with both Informed certifications on a whey isolate. What we do not repeat is the brand's "cleanest whey available" language or its Labdoor score, which are theirs to claim. At $59.99 for 2 lb it prices above commodity whey and below boutique isolates, and the subscription trims it to $53.99.
Anyone who wants their protein powder's purity claims backed by published batch documents rather than label promises, including tested athletes.
You want the cheapest effective whey; commodity concentrate costs half as much and the difference is documentation and isolate purity, not protein function.
Specifications
Where this fits
Transparent Labs 100% Grass-Fed Whey Protein Isolate cross-shops across several editorial surfaces on this site: the full brand catalog and the price band it qualifies for.
Transparent Labs 100% Grass-Fed Whey Protein Isolate - buyer FAQ
How much does Transparent Labs whey isolate cost?
The 2 lb tub is $59.99 one-time or $53.99 on subscription, and the 4 lb is $99.99 or $89.99, verified August 5, 2026 against the brand's own store data. Worth knowing: a duplicate listing at $69.99 appeared on their site two days before we checked, which suggests a price rise may be rolling out.
Is Transparent Labs whey actually third-party tested?
Yes, in the checkable sense: the brand publishes per-batch certificates of analysis on its site and carries both Informed Choice and Informed Protein certification, which involve independent banned-substance testing. That combination, published batch documents plus dual certification, is the reason this pick exists.
How much protein is in each serving?
The brand states 28 g of protein per serving at roughly 87.5 percent protein by weight, with the caveat that the percentage varies by flavor. One gram of fat per serving, no artificial sweeteners, dyes, fillers or preservatives, and the isolate processing makes it described as virtually lactose-free.
Grass-fed whey: does it matter?
For protein content, not much; for sourcing preference, it is a real distinction. The brand states its whey comes from grass-fed American cattle raised without growth hormone. Treat that as a supply-chain claim the brand makes and the certifications partially audit, not as a nutritional advantage we are asserting.
Has Lifespan Vault tested this product?
No. This entry is built from the brand's published product data, page and certification claims, verified August 5, 2026. Performance language on their page, including recovery and muscle-growth claims, is the brand's marketing and is not repeated here as fact.
Transparent Labs Grass-Fed Whey Protein Isolate
$59.99–$99.99 · Verified 2026-08-05
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