10 Best protein powder 3rd party tested

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Last Updated: 11-23-2025

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Levels Grass Fed Whey Protein Powder, No Artificials, 24G of Protein, Pure Chocolate, 5LB

Levels Nutrition

9.8

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Nutricost Isolate Whey Protein Powder, Vanilla, 5 pounds

Nutricost

9.6

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Best Value

Transparent Labs Grass-Fed Whey Protein Isolate - Naturally Flavored, Gluten Free Whey Protein Powder with 28g of Protein per Serving & 9 Amino Acids - 30 Servings, Milk Chocolate

Transparent Labs

9.5

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Transparent Labs Grass-Fed Whey Protein Isolate - Naturally Flavored, Gluten Free Whey Protein Powder with 28g of Protein per Serving & 9 Amino Acids - 30 Servings, French Vanilla

Transparent Labs

9.2

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- 25%

NAKED Whey Vanilla Protein Powder - Only 3 Ingredients - Grass Fed Whey Protein Powder, Vanilla Flavor, and Organic Coconut Sugar, No GMO, No Soy, and Gluten Free - 24 Servings

NAKED

9.1

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NAKED Whey Chocolate Protein Powder - Only 3 Ingredients - Grass Fed Whey Protein Powder, Organic Chocolate and Organic Coconut Sugar, No GMO, No Soy, and Gluten Free - 24 Servings

NAKED

8.8

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- 5%

Optimum Nutrition Gold Standard 100% Whey Protein Powder, Double Rich Chocolate 1.98 Pound (Packaging May Vary)

Optimum Nutrition

8.6

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Dymatize ISO100 Whey Protein Powder Isolate, Gourmet Chocolate, 25g of Protein, 5.5g BCAAs, Less Than 120 Cal., Gluten Free, 1g Fat, 1g Sugar, 2g Carb (20 Servings)

Dymatize

8.4

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- 16%

NAKED Vanilla Whey Protein 1Lb, Only 3 Ingredients, All Natural Grass Fed Whey Protein Powder + Vanilla + Coconut Sugar- GMO-Free, Soy Free, Gluten Free. Aid Muscle Growth, 12 Servings

NAKED

8.2

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It's Just! - 100% Whey Protein Concentrate, Made in USA, No RBST/rBGH Hormones, Premium WPC-80, No Added Flavors or Artificial Sweeteners (1.25 Pound, Unflavored)

It's Just!

8.1

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Levels Grass Fed Whey Protein Powder, No Artificials, 24G of Protein, Pure Chocolate, 5LB

Nutricost Isolate Whey Protein Powder, Vanilla, 5 pounds

Transparent Labs Grass-Fed Whey Protein Isolate - Naturally Flavored, Gluten Free Whey Protein Powder with 28g of Protein per Serving & 9 Amino Acids - 30 Servings, Milk Chocolate

Transparent Labs Grass-Fed Whey Protein Isolate - Naturally Flavored, Gluten Free Whey Protein Powder with 28g of Protein per Serving & 9 Amino Acids - 30 Servings, French Vanilla

NAKED Whey Vanilla Protein Powder - Only 3 Ingredients - Grass Fed Whey Protein Powder, Vanilla Flavor, and Organic Coconut Sugar, No GMO, No Soy, and Gluten Free - 24 Servings

NAKED Whey Chocolate Protein Powder - Only 3 Ingredients - Grass Fed Whey Protein Powder, Organic Chocolate and Organic Coconut Sugar, No GMO, No Soy, and Gluten Free - 24 Servings

Optimum Nutrition Gold Standard 100% Whey Protein Powder, Double Rich Chocolate 1.98 Pound (Packaging May Vary)

Dymatize ISO100 Whey Protein Powder Isolate, Gourmet Chocolate, 25g of Protein, 5.5g BCAAs, Less Than 120 Cal., Gluten Free, 1g Fat, 1g Sugar, 2g Carb (20 Servings)

NAKED Vanilla Whey Protein 1Lb, Only 3 Ingredients, All Natural Grass Fed Whey Protein Powder + Vanilla + Coconut Sugar- GMO-Free, Soy Free, Gluten Free. Aid Muscle Growth, 12 Servings

It's Just! - 100% Whey Protein Concentrate, Made in USA, No RBST/rBGH Hormones, Premium WPC-80, No Added Flavors or Artificial Sweeteners (1.25 Pound, Unflavored)

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