Advertising Disclosure

Best bulk micellar casein proteins - May 2026

Last Updated - May 22, 2026

1
Best Choice

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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)

Optimum Nutrition

$83.94

$91.99
(9% Off)

More Details
Main highlights
- With micellar casein, this Optimum Nutrition protein powder helps support muscle recovery
- One 3.86 lb container (53 servings) of Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder in Chocolate Supreme
- Mixes easily with a shaker cup, perfect for packing in your gym bag as part of your training routine
- Feel good about your after-workout recovery drink
- Each serving has 9 grams of naturally occurring Essential Amino Acids
$83.94
$91.99 (9% Off)
2
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Optimum Nutrition

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

Optimum Nutrition

$83.94

$91.99
(9% Off)

More Details
Main highlights
- With micellar casein, this Optimum Nutrition protein powder helps support muscle recovery
- One 3.86 lb container (53 servings) of Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder in Creamy Vanilla
- Mixes easily with a shaker cup, perfect for packing in your gym bag as part of your training routine
- Feel good about your after-workout recovery drink
- Each serving has 9 grams of naturally occurring Essential Amino Acids
$83.94
$91.99 (9% Off)
3

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Nutricost

Nutricost Casein Protein Powder 5lb - Micellar Casein, Non-GMO, Gluten Free (Unflavored)

Nutricost

$66.95

More Details
Main highlights
- Serving Size: 1 Scoop (Included)
- Non-GMO and Gluten Free
- High Quality Micellar Casein Powder
- 5 Pounds of Casein Protein Per Bottle
- 24 Grams of Protein Per Serving
$66.95
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Nutricost

Nutricost Casein Protein Powder 5lb - Micellar Casein, Non-GMO, Gluten Free (Unflavored)

Nutricost

$63.60

$66.95
(5% Off)

More Details
Main highlights
- Serving Size: 1 Scoop (Included)
- Non-GMO and Gluten Free
- High Quality Micellar Casein Powder
- 5 Pounds of Casein Protein Per Bottle
- 24 Grams of Protein Per Serving
$63.60
$66.95 (5% Off)
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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)

Optimum Nutrition

$49.65

$53.99
(8% Off)

More Details
Main highlights
- With micellar casein, this Optimum Nutrition protein powder helps support muscle recovery
- One 1.87 lb container (25 servings) of Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder in Chocolate Supreme flavor
- Mixes easily with a shaker cup, perfect for packing in your gym bag as part of your training routine
- Feel good about your after-workout recovery drink
- Each serving has 9 grams of naturally occurring Essential Amino Acids
$49.65
$53.99 (8% Off)

Best bulk micellar casein proteins - May 2026

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)

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

Nutricost Casein Protein Powder 5lb - Micellar Casein, Non-GMO, Gluten Free (Unflavored)

Nutricost Casein Protein Powder 5lb - Micellar Casein, Non-GMO, Gluten Free (Unflavored)

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)

You may also like...

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)

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)

Dymatize Elite Casein Protein Powder, Vanilla, 100% Micellar Casein, 25g Protein, 5.4g BCAAs, 2.3g Leucine, Slow Absorbing for Overnight Muscle Recovery, 4 lb (55 Servings)

Dymatize Elite Casein Protein Powder, Vanilla, 100% Micellar Casein, 25g Protein, 5.4g BCAAs, 2.3g Leucine, Slow Absorbing for Overnight Muscle Recovery, 4 lb (55 Servings)

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

BulkSupplements.com Casein Protein Powder - Micellar Casein Powder, Slow Digesting Protein - Unflavored & Gluten Free, 30g per Serving, 500g (1.1 lbs) (Pack of 1)

BulkSupplements.com Casein Protein Powder - Micellar Casein Powder, Slow Digesting Protein - Unflavored & Gluten Free, 30g per Serving, 500g (1.1 lbs) (Pack of 1)

NAKED Casein - 1Lb Micellar Casein Protein - Bulk, Zero Carb, NSF Certified, GMO-Free, Gluten Free, Soy Free, Preservative Free - Stimulate Muscle Growth - Enhance Recovery - 15 Servings

NAKED Casein - 1Lb Micellar Casein Protein - Bulk, Zero Carb, NSF Certified, GMO-Free, Gluten Free, Soy Free, Preservative Free - Stimulate Muscle Growth - Enhance Recovery - 15 Servings

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

Sign up and get exclusive special deals