Best protein powderWhey

Transparent Labs 100% Grass-Fed Whey Protein Isolate

74/100
our score
#4 of 12 ranked · 28 g protein per 1 scoop (34 g)

Transparent Labs built its whole brand on refusing proprietary blends: every gram on the label is accounted for, and every batch is third-party tested. It costs more than a mass-market whey, but you're paying for that transparency.

Why it scores 74/100

29/40Protein densityAbout 80% of its calories come from protein.
20/20Third-party testedYes, screened for banned substances.
20/20Complete proteinCarries all nine essential amino acids.
5/20Value ($$$)Grass-fed whey protein isolate
Best for: Label-readers who want to see exactly what they are taking.

Transparent Labs 100% Grass-Fed Whey Protein Isolate nutrition

Serving
Protein
Calories
Carbs
Fat
1 scoop (34 g)
Protein28 g
Calories140
Carbs2 g
Fat2 g
2 scoops (68 g)
Protein56 g
Calories280
Carbs4 g
Fat4 g

Values are from the product label. Flavors and formulas vary, so always check your own tub.

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FAQ

Transparent Labs 100% Grass-Fed Whey Protein Isolate, answered

Transparent Labs 100% Grass-Fed Whey Protein Isolate has about 28 g of protein per 1 scoop (34 g), plus 140 calories, 2 g of carbs and 2 g of fat.

Yes. Transparent Labs 100% Grass-Fed Whey Protein Isolate carries brand-wide third-party testing (the kind used by NSF Certified for Sport or Informed Sport programs), which screens for banned substances and contaminants.

Yes. Transparent Labs 100% Grass-Fed Whey Protein Isolate supplies all nine essential amino acids your body cannot make on its own.

At $$$, it is priced at a premium versus most of the products on this list. It scores 74/100 overall. See the full breakdown above for exactly why.