10 Best casine protein powders of 2026

Explore top picks

Best Choice

1

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder, Slow Digesting, Helps Keep You Full, Overnight Muscle Recovery, Chocolate Supreme, 4 Pound (Packaging May Vary)
9.9

Exceptional

Our Rating

9.3
Absorbency

9.1
quality of ingredients

8.4
Powerful blending
How do we rank?

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Based on millions of stores and reviews

Shoppers influence our rankings
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Value for Money

2

Dymatize
Dymatize Elite Casein Protein Powder, Chocolate, 100% Micellar Casein, 25g Protein, 5.4g BCAAs, 2.3g Leucine, Slow Absorbing for Overnight Muscle Recovery, 4 lb (50 Servings)
Main highlights

Key Features
Delivers 25g of slow-absorbing micellar casein, 5g of BCAAs, and 2.3g of L-Leucine for prolonged muscle support and recovery.

Ideal Use
Perfect for overnight muscle repair and growth, or for maintaining amino acid levels between meals for sustained muscle building.

Customer Praise
Highly praised for its effective support in muscle recovery and growth during sleep, making it a favorite for fitness enthusiasts.
Key specs
- BCAAs:5 grams
- Protein:25 grams
- Amino Acids:Sustained release
- Carbs:N/A
- Fats:N/A
9.8

Exceptional

Our Rating

9.1
Powerful blending

8.7
Flavor

8.7
worth the money
3

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder, Slow Digesting, Helps Keep You Full, Overnight Muscle Recovery, Chocolate Supreme, 2 Pound (Packaging May Vary)
9.7

Exceptional

Our Rating

9.3
Absorbency

9.1
quality of ingredients

8.4
Powerful blending
4

Nutricost
Nutricost Casein Protein Powder 5lb Vanilla - Micellar Casein, Gluten Free, Non-GMO
Main highlights

Key Features and Benefits
100 Vanilla flavored Micellar Casein with 25g of protein per serving. Non-GMO, Gluten Free, produced in a GMP compliant, FDA Registered Facility.

Ideal Use Cases
Perfect for post-workout recovery, overnight muscle repair, and slow-digesting protein source to support lean muscle and satiety.

Customer Reviews Highlight
Most praised for its great taste and effectiveness in muscle recovery and growth, making it a favorite among fitness enthusiasts.
Key specs
- Flavor:Vanilla
- Protein:25 Grams per Serving
- Diet:Non-GMO, Gluten Free
- Sugar:N/A
- Carbs:N/A
9.4

Excellent

Our Rating

8.2
worth the money

8.2
Sheerness

8.0
quality of ingredients
5

GNC

GNC Pro Performance 100% Casein Protein Powder, 25g Protein, Supports Sustained Muscle Strength, Recovery, Slow Digesting, Gluten Free, 3rd Party Tested, Vanilla Cream, 28 Servings
9.3

Excellent

Our Rating
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6

Nutricost
Nutricost Casein Protein Powder 2lb Vanilla - Micellar Casein, Gluten Free, Non-GMO
Main highlights

High Protein Content
Provides 25 grams of protein per serving, ideal for muscle recovery.

Ideal for Nighttime Use
Slow-digesting micellar casein perfect for overnight muscle nourishment.

Customer Praised Flavor
Vanilla flavor is frequently praised for its rich taste.
Key specs
- Flavor:Vanilla
- Protein:N/A
- Date First Available:May 29, 2019
- Manufacturer:Nutricost
- ASIN:B07SH22XS3
9.1

Excellent

Our Rating
7

Optimum Nutrition

Gold Standard 100% Casein
8.8

Very Good

Our Rating

9.3
Absorbency

9.1
quality of ingredients

8.4
Powerful blending
8

BulkSupplements
BulkSupplements.com Casein Protein Powder - Micellar Casein Powder, Slow Digesting Protein - Unflavored & Gluten Free, 30g per Serving, 1kg (2.2 lbs) (Pack of 1)
Main highlights

Key Features
Essential amino acids for muscle growth, quick absorption for recovery, unflavored for versatile use in shakes, smoothies, and cooking.

Ideal Use Cases
Perfect for athletes and active individuals seeking muscle recovery, growth, and maintenance without added sugars or artificial flavors.

Customer Reviews Summary
Highly praised for its mixability, pure and clean taste, and effectiveness in muscle recovery and growth.
Key specs
- Flavor:Unflavored
- Protein:Casein Protein
- Diet:N/A
- Sugar:No added sugar
- Carbs:N/A
8.5

Good

Our Rating

8.9
worth the money

8.7
Absorbency

8.0
Powerful blending
9

Levels Nutrition
Levels 100% Micellar Casein Protein, Hormone Free, Chocolate, 2LB
Main highlights

Key Features and Benefits
24g protein, 5.2g BCAAs, no added sugars, hormone-free, micellar casein for high-quality protein and essential amino acids.

Ideal Use Cases
Perfect for athletes, fitness enthusiasts, and daily grinders seeking muscle recovery, overnight nutrition, or a high-protein, low-sugar option.

Customer Reviews Highlight
Highly praised for its great taste, easy mixing, and the use of natural, clean ingredients without artificial additives.
8.4

Good

Our Rating

9.5
quality of ingredients

9.1
Flavor

8.9
Powerful blending
10

It's Just!

It's Just! - 100% Casein Protein Powder, Made in USA, One Ingredient, Slow Burning, Time Release (1 Pound (Pack of 1), Unflavored)
8.3

Good

Our Rating

10 Best casine protein powders of 2026

1

Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder, Slow Digesting, Helps Keep You Full, Overnight Muscle Recovery, Chocolate Supreme, 4 Pound (Packaging May Vary)

9.3

9.1

8.4

How do we rank?

How do we rank?

Analyzing top stores

2

Dymatize Elite Casein Protein Powder, Chocolate, 100% Micellar Casein, 25g Protein, 5.4g BCAAs, 2.3g Leucine, Slow Absorbing for Overnight Muscle Recovery, 4 lb (50 Servings)

9.1

8.7

8.7

3

Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder, Slow Digesting, Helps Keep You Full, Overnight Muscle Recovery, Chocolate Supreme, 2 Pound (Packaging May Vary)

9.3

9.1

8.4

4

Nutricost Casein Protein Powder 5lb Vanilla - Micellar Casein, Gluten Free, Non-GMO

8.2

8.2

8.0

5

GNC Pro Performance 100% Casein Protein Powder, 25g Protein, Supports Sustained Muscle Strength, Recovery, Slow Digesting, Gluten Free, 3rd Party Tested, Vanilla Cream, 28 Servings

6

Nutricost Casein Protein Powder 2lb Vanilla - Micellar Casein, Gluten Free, Non-GMO

7

Gold Standard 100% Casein

9.3

9.1

8.4

8

BulkSupplements.com Casein Protein Powder - Micellar Casein Powder, Slow Digesting Protein - Unflavored & Gluten Free, 30g per Serving, 1kg (2.2 lbs) (Pack of 1)

8.9

8.7

8.0

9

Levels 100% Micellar Casein Protein, Hormone Free, Chocolate, 2LB

9.5

9.1

8.9

10

It's Just! - 100% Casein Protein Powder, Made in USA, One Ingredient, Slow Burning, Time Release (1 Pound (Pack of 1), Unflavored)

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