10 Best isolate whey proteins of 2025

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Best Choice

1

Dymatize
Dymatize ISO 100 Whey Protein Powder with 25g of Hydrolyzed 100% Whey Isolate, Vanilla 5 Pound, Package may vary
Main highlights

Key Features and Benefits
High-quality, hydrolyzed 100% whey protein isolate with 25g protein, 5.5g BCAAs, 2.6g Leucine. Low in sugar, lactose, fat, and gluten-free.

Ideal Use Cases
Perfect for athletes, gym enthusiasts for post-workout recovery or anyone needing high-protein, low-calorie nutrition. Mixes easily with a spoon.

Customer Reviews Highlight
Most praised for its super easy mixing ability, taste, and effectiveness in muscle recovery and building, even with just a cup and spoon.
9.9

Exceptional

Our Rating

9.9
Absorbency

9.7
Sheerness

9.3
Powerful blending
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Value for Money

2

Transparent Labs
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
Main highlights

High Protein Content
Transparent Labs offers 28g of protein per serving, sourced from grass-fed American cattle, ensuring high protein-by-weight ratio with minimal sugar or fat.

Ideal for Muscle Recovery
Perfect for enhancing recovery and promoting muscle growth, this protein is light on the stomach and easily digestible.

Customer Praised Flavor
Customers love the milk chocolate flavor, noting its smooth taste and lack of overwhelming sweetness.
Key specs
- Source:100% grass-fed whey
- Protein:28g per serving
- Usage:Enhance recovery, increase strength
- Flavor:Naturally flavored
- Carbohydrates:Minimal sugar
9.7

Exceptional

Our Rating
3

Optimum Nutrition
Optimum Nutrition Gold Standard 100% Isolate, Protein Powder, Chocolate Bliss, 3 Pounds, 44 Servings. Whey Protein Isolate (Packaging May Vary)

19% Off
Main highlights

Key Features and Benefits
High-quality, hydrolyzed whey protein isolate with 25g protein, 5.5g BCAAs, only 1g carbs, ensuring muscle growth and quick recovery.

Ideal Use Cases
Perfect for athletes, bodybuilders, and fitness enthusiasts seeking rapid muscle recovery, post-workout nutrition, or a low-carb protein source.

Customer Reviews Summary
Most reviews praise its easy digestibility, effectiveness in muscle recovery, and minimal carbohydrate content.
Key specs
- Source:Whey Protein Isolate
- Protein:25 Grams per Serving
- Usage:N/A
- Flavor:N/A
- Carbohydrates:1 Gram per Serving
9.5

Excellent

Our Rating

9.3
quality of ingredients

9.1
Powerful blending

8.9
Flavor
4

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

High Protein Content
Contains 24g of protein per serving for muscle building.

Versatile Usage
Ideal for pre/post-exercise, between meals, or anytime protein boost.

Customer Praised Taste
Double Rich Chocolate flavor is widely appreciated for its taste.
9.3

Excellent

Our Rating

9.1
simple to consume

9.1
Powerful blending

9.1
quality of ingredients
5

Isopure
Isopure Zero Carb 100% Pure Whey Isolate Protein Powder, Lactose Free, Gluten Free, With Vitamins, Creamy Vanilla, 25g Protein Per Serving, 1 Lb, 15 Servings (Packaging May Vary)

17% Off
Main highlights

Immune Support and Muscle Recovery
Vitamin C, zinc, and 25g protein support immunity and muscle recovery.

Versatile Usage Options
Ideal for post-workout, between meals, or with breakfast.

Smooth Blending and Taste
Customers praise its smooth blending and delicious flavor.
9.0

Excellent

Our Rating

8.9
Powerful blending

8.9
quality of ingredients

8.0
Flavor
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6

NAKED

NAKED Whey Isolate Protein - Only 2 Ingredients, 30g Grass-Fed Protein, Unflavored, Undenatured, No GMO, No Soy, Gluten-Free, No Preservatives - 28 Servings
8.9

Very Good

Our Rating
7

Nutricost
Nutricost Whey Protein Isolate (Unflavored) 2LBS
Main highlights

Key Features and Benefits
High-quality, unflavored whey protein isolate with 30g protein per serving, made in a GMP compliant, FDA registered facility.

Ideal Use Cases
Perfect for athletes, bodybuilders, and fitness enthusiasts needing a pure protein source for muscle recovery and growth.

Customer Reviews Highlight
Most praised for its purity and lack of flavor, making it versatile for mixing with various foods and beverages.
Key specs
- Source:Whey Protein Isolate
- Protein:30 Grams per serving
- Usage:1 Scoop per serving
- Flavor:Unflavored
- Carbohydrates:N/A
8.8

Very Good

Our Rating

9.5
Powerful blending

9.1
quality of ingredients

8.9
worth the money
8

Body Fortress

Body Fortress 100% Ultra-Filtered Isolate Protein Powder, Vanilla, 60g Protein & 12g BCAAs Per 2 Scoops, Muscle Gain & Recovery, Immune Support with Vitamins C & D, 1.5lbs,Packaging May Vary
8.7

Very Good

Our Rating
9

NOW Foods
NOW Foods Sports Nutrition, Whey Protein Isolate, 25 g With BCAAs, Unflavored Powder, 1.2-Pound

29% Off
Main highlights

High-Quality Protein with BCAAs
NOW Sports Whey Protein Isolate offers 25g of bioavailable protein with BCAAs, ensuring effective muscle repair and growth.

Perfect for Athletes and Fitness Enthusiasts
Ideal for post-workout recovery, supporting muscle repair and enhancing performance for athletes and gym-goers.

Mixes Easily and Tastes Good
Praised for its easy mixing and decent taste, making it versatile for smoothies and shakes.
Key specs
- Source:Whey
- Protein:25 g per serving
- Usage:Mix into smoothie
- Flavor:Unflavored
- Carbohydrates:N/A
8.6

Very Good

Our Rating

9.7
Powerful blending

9.1
quality of ingredients

8.2
worth the money
10

Isopure
Isopure Zero Carb 100% Pure Whey Isolate Protein Powder, Lactose Free, Gluten Free, With Vitamins, Unflavored, 25g Protein Per Serving, 1 Lb, 16 Servings (Packaging May Vary)

17% Off
Main highlights

High-Quality Protein Source
Provides 25g of whey protein isolate per serving, supporting muscle growth and weight management with only 100 calories.

Versatile Mixing Options
Ideal for adding to beverages and foods; mixes easily without altering taste or texture.

Clean and Smooth Texture
Praised for its ability to blend smoothly, enhancing drinks without lumps or aftertaste.
Key specs
- Source:Whey protein isolate
- Protein:25g per serving
- Usage:Mix in beverage or food
- Flavor:Unflavored
- Carbohydrates:Zero carbs
8.5

Good

Our Rating

9.3
quality of ingredients

8.4
Flexibility

8.0
worth the money

10 Best isolate whey proteins of 2025

1

Dymatize ISO 100 Whey Protein Powder with 25g of Hydrolyzed 100% Whey Isolate, Vanilla 5 Pound, Package may vary

9.9

9.7

9.3

How do we rank?

How do we rank?

Analyzing top stores

2

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

3

Optimum Nutrition Gold Standard 100% Isolate, Protein Powder, Chocolate Bliss, 3 Pounds, 44 Servings. Whey Protein Isolate (Packaging May Vary)

9.3

9.1

8.9

4

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

9.1

9.1

9.1

5

Isopure Zero Carb 100% Pure Whey Isolate Protein Powder, Lactose Free, Gluten Free, With Vitamins, Creamy Vanilla, 25g Protein Per Serving, 1 Lb, 15 Servings (Packaging May Vary)

8.9

8.9

8.0

6

NAKED Whey Isolate Protein - Only 2 Ingredients, 30g Grass-Fed Protein, Unflavored, Undenatured, No GMO, No Soy, Gluten-Free, No Preservatives - 28 Servings

7

Nutricost Whey Protein Isolate (Unflavored) 2LBS

9.5

9.1

8.9

8

Body Fortress 100% Ultra-Filtered Isolate Protein Powder, Vanilla, 60g Protein & 12g BCAAs Per 2 Scoops, Muscle Gain & Recovery, Immune Support with Vitamins C & D, 1.5lbs,Packaging May Vary

9

NOW Foods Sports Nutrition, Whey Protein Isolate, 25 g With BCAAs, Unflavored Powder, 1.2-Pound

9.7

9.1

8.2

10

Isopure Zero Carb 100% Pure Whey Isolate Protein Powder, Lactose Free, Gluten Free, With Vitamins, Unflavored, 25g Protein Per Serving, 1 Lb, 16 Servings (Packaging May Vary)

9.3

8.4

8.0

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