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Transparent Labs 100% Grass-Fed Whey Protein Isolate Review

The transparency benchmark for whey protein. Every ingredient listed with exact mg amounts. Public COAs with lot matching. Informed Choice + Informed Protein dual certified. 88% protein by weight (hig

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By Alec & Michael•9 min read
✓ Updated Apr 20266.4/10 Score
Transparent Labs 100% Grass-Fed Whey Protein Isolate

Transparent Labs 100% Grass-Fed Whey Protein Isolate.

100% Grass-Fed Whey Protein Isolate

100% Grass-Fed Whey Protein Isolate

★★★★★6.4 / 10

The transparency benchmark for whey protein. Every ingredient listed with exact mg amounts.

Formulation Quality
6
Testing & Transparency
8
$1.82/serving
Detailed Scoring

Evident Ratings

100% Grass-Fed Whey Protein Isolate

Sub-scores are category scores on a 1–5 scale, shown out of 10.

6.4
out of 10
6/10
8/10
3/10
7.6/10
6/10
Price per serving: $1.82/serving
Our Findings

What We Found

What we liked

Third-party tested (Informed Choice, Informed Protein)

Publicly available Certificates of Analysis

No gums or thickeners

No soy lecithin

No added sugar

Our concerns

Contains natural flavors

Our Verdict

The transparency benchmark for whey protein. Every ingredient listed with exact mg amounts.

See Best Protein Powder →

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100% Grass-Fed Whey Protein Isolate

Transparent Labs

100% Grass-Fed Whey Protein Isolate

Researched and scored by Evident Reviews using our published criteria (owned brands disclosed)High confidence

6.4
Overall
Material Safety
6/10
Trust & Reputation
8/10
Value & Policy
3/10
Features
7.6/10
Firsthand testing
6/10
Material & Safety
Third-Party Testing
Informed Choice, Informed ProteinVerified
COA Availability
Public (every lot)Verified
Heavy Metals Testing
Clean Label Project: lead below detection limits (#6 ranked). BarBend independent lab test rated 4/5 for heavy metals.Verified
Clean Label Project
#6 rankedVerified
USDA Organic
NoClaimed
Trust & Reputation
Amazon Rating
4.5Verified
Amino Acid Profile Disclosed
YesVerified
Value & Policy
Price
$1.82–$2.00/servingVerified
Price Per Serving
$1.82Verified
Servings Per Container
30Verified
Return Policy
30-day return from delivery. Unopened: full refund to original payment. Opened: exchange or store credit only. Customer pays return shipping. Email support@transparentlabs.com to initiate.Claimed
Subscription
10% off + free shipping; delivery every 15, 30, or 45 daysClaimed
Features
Natural Flavors
Contains: Contains 'Natural Flavors' (~840mg per serving) — exact amount disclosedClaimed
Gums
NoneVerified
Soy Lecithin
NoneVerified
Added Sugar
NoneVerified
Sweetener
SteviaVerified
Protein Source Category
Animal-BasedVerified
Protein Source
Whey IsolateVerified
Made In
USAClaimed
GMP Certified
YesVerified
Manufacturing Location
USAClaimed

Background

Founded on radical transparency — every ingredient with exact amounts, public test results, no proprietary blends. Known across their full supplement line. Primarily DTC model. Built credibility in fitness/bodybuilding before expanding to broader health market.

Full category comparison

Best Protein Powder →