10 Best isolate whey proteins of 2025

Save up to 31% off

Best Choice

1

Nutricost
Nutricost Whey Protein Isolate Powder (Milk Chocolate) 5LBS
Main highlights

Key Features
High-quality whey protein isolate with 30g per serving, made in a GMP compliant, FDA registered facility. Ideal for optimal muscle growth and recovery.

Ideal Use Cases
Perfect for athletes, bodybuilders, and fitness enthusiasts needing high-protein supplementation for post-workout recovery or meal replacement.

Customer Praise
Most reviews highlight its excellent mixability, taste, and effectiveness in aiding recovery and muscle building, making it a favorite.
Key specs
- Source:Whey Protein Isolate
- Protein:30 Grams per serving
- Usage:1 Scoop per serving
- BCAAs:N/A
- Flavor:N/A
9.7

Exceptional

Our Rating

9.5
Powerful blending

9.1
quality of ingredients

8.9
worth the money
How do we rank?

Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you

Careful review Our team ensures quality, value, and fit based on real user feedback

Trusted insights AI and human analysis guide your decisions, reflecting real user priorities
Real users impact

Thousands of users trust our site daily

Based on millions of stores and reviews

Shoppers influence our rankings
Analyzing top stores
Value for Money

2

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

10% 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
- BCAAs:5.5 Grams per Serving
- Flavor:N/A
9.5

Excellent

Our Rating

9.3
quality of ingredients

9.1
Powerful blending

8.9
Flavor
3

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

29% Off
Main highlights

Fast Absorbing Hydrolyzed Protein
Scientifically formulated with fast-digesting hydrolyzed whey protein isolate for quick muscle recovery.

Ideal for Post-Workout
Perfect for post-workout recovery, providing 25g protein and 5.5g BCAAs per serving.

Smooth Texture Praised
Customers love its smooth, creamy texture and easy mixability.
Key specs
- Source:Hydrolyzed whey
- Protein:25 grams
- Usage:Fast-digesting protein
- BCAAs:5.5 grams
- Flavor:Gourmet Vanilla
9.3

Excellent

Our Rating

9.1
quality of ingredients

8.7
Powerful blending

8.2
worth the money
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.
9.1

Excellent

Our Rating

9.1
simple to consume

9.1
Powerful blending

9.1
quality of ingredients
5

Dymatize
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)
Main highlights

High Protein Content
Contains 25g of protein with 5.5g BCAAs per serving.

Ideal for Post-Workout
Fast-digesting hydrolyzed whey protein aids in muscle recovery.

Praised for Flavor
Customers love the smooth texture and flavorful taste options.
Key specs
- Source:Hydrolyzed whey protein isolate
- Protein:25 grams
- Usage:Food supplement
- BCAAs:5.5 grams
- Flavor:Gourmet Chocolate
9.0

Excellent

Our Rating

8.9
Powerful blending

8.9
quality of ingredients

8.7
Sheerness
See Today’s Deals & Prices
6

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Isolate, Protein Powder, Rich Vanilla, 2.91 Pounds, 44 Servings. Whey Protein Isolate (Packaging May Vary)

10% Off
8.7

Very Good

Our Rating
7

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)

31% 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
- BCAAs:N/A
- Flavor:Unflavored
8.6

Very Good

Our Rating

9.3
quality of ingredients

8.4
Flexibility

8.0
worth the money
8

NAKED

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

13% Off
8.3

Good

Our Rating
9

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)

24% 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.
8.1

Good

Our Rating

8.9
Powerful blending

8.9
quality of ingredients

8.0
Flavor
10

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
- BCAAs:Contains all nine
- Flavor:Naturally flavored
7.9

Good

Our Rating

10 Best isolate whey proteins of 2025

1

Nutricost Whey Protein Isolate Powder (Milk Chocolate) 5LBS

9.5

9.1

8.9

How do we rank?

How do we rank?

Analyzing top stores

2

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

3

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

9.1

8.7

8.2

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

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)

8.9

8.9

8.7

6

Optimum Nutrition Gold Standard 100% Isolate, Protein Powder, Rich Vanilla, 2.91 Pounds, 44 Servings. Whey Protein Isolate (Packaging May Vary)

7

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

8

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

9

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

10

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

Sign up and get exclusive special deals