100% Real Casein - 4 lb - Protein | Prozis

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100% Real Casein - 4 lb (1)

Nutrition Facts

Batch:  I2507540

Best by:  11/30/2026

Customer Reviews

4.6
(4036 reviews)

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Product Details

100% REAL
TIME-RELEASE

HIGH-PROTEIN FORMULA

SLOW-RELEASE PROTEIN

PROTEIN CONTRIBUTES TO
MUSCLE MASS GROWTH*

Grade-A casein for real muscle nourishment

Athletes and fitness enthusiasts all over the world have come to rely on casein products as an important source of protein. Casein is extracted from milk, just like the popular whey protein. The difference between these proteins, however, is their absorption rate. Whereas whey is typically taken as a fast-release protein fix, casein is ideal for when you're unable to get a protein fix for a longer time.

Protein contributes to a

GROWTH IN MUSCLE MASS

Protein supports the

MAINTENANCE OF MUSCLE MASS
GUARANTEED BEST VALUE FOR YOUR MONEY
UNMATCHED SELECTION OF FLAVORS
A casein point

Prozis 100% Real Casein features premium-quality micellar casein in a formula with an extremely high protein content to contribute to the growth and maintenance of your muscle mass. Also, the best taste is guaranteed thanks to the efforts of the best flavor specialists, so that you’ll truly enjoy every sip of your shake. Subject to rigorous tests in advanced labs, the composition of Prozis 100% Real Casein hides no secrets from you. What you read on the label is what you get in your shake.

Lab Tested

Backed by testing in advanced laboratories, this product is designed to meet high standards of quality and safety.

HOW TO USE

Add 1 scoop (33 g) of powder to 8–12 fl oz of water or any beverage you prefer. Adjust the amount of liquid to achieve desired flavor and consistency. To make it richer and more intense, use 8 fl oz of water. To soften the flavor, use 10–12 fl oz of water. Shake well and enjoy!

Shaken or stirred?

If protein shakes aren’t your thing or you’re ready to switch up your daily routine, we’ve got you covered. Use less water and stir your powder into a smaller bowl for a rich, creamy texture that’s perfect for a change of pace. Add fresh fruit or your favorite toppings to create a protein-packed porridge that takes your shake game to the next level. Stir things up and enjoy a new way to fuel your day!

Purely simple:

• Perfect mixability

• Delicious flavors

• Protein contributes to muscle mass growth*

• Best value for money guaranteed

*This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Nutrition Facts

100% Real Casein - 4 lb - Nutrition Facts

Net weight: 1814 g

Batch:  I2507540

Best by:  11/30/2026

View nutrition label

Nutrition Facts

54 Servings per container

Serving size 1 scoop(s) (33 g)

Amount per serving

Calories
120

% Daily Value *

Total Fat
0.5 g
1%
Saturated Fat
0 g
0%
Trans Fat
0 g
Cholesterol
15 mg
5%
Dietary Fiber
1 g
Sodium
160 mg
7%
Total Carbohydrate
3 g
1%
Sugar
2 g
0%
Includes 0g Added Sugars
0%
Protein
26 g
52%
Vitamin D
3.5 mcg
18%
Calcium
720 mg
55%
Iron
0.9 mg
5%
Potassium
210 mg
4%
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
Amino Acid Profile

Amount per serving

Alanine
744.37 mg
Arginine
857.16 mg
Aspartic Acid
1737.03 mg
Cysteine
157.96 mg
Glutamic Acid
5030.91 mg
Glycine
428.70 mg
Histidine
654.29 mg
Isoleucine
1173.07 mg
Leucine
2278.52 mg
Lysine
1962.61 mg
Methionine
676.75 mg
Phenylalanine
1173.07 mg
Proline
2414.02 mg
Serine
1353.49 mg
Threonine
1037.82 mg
Tryptophan
293.21 mg
Tyrosine
1218.24 mg
Valine
1488.99 mg
Ingredients: Micellar Casein, Cocoa powder (Processed with alkali), Natural and Artificial Flavors, Salt, Xanthan Gum, Guar Gum, Acesulfame Potassium, Sucralose.
Contains: Milk. Manufactured in a facility that also processes eggs, wheat and soybeans.
Instructions: Mix 3 scoops (33g) with 8-12 fl oz of water or any beverage you prefer. To make it richer and more intense, use 8 fl oz of water. To soften the flavor, use 10-12 fl oz of water. Vary the amount of liquid to achieve desired flavor and consistency. Shake well and enjoy! Scoop inside container.
Keep in the original packaging in a cool, dry place, avoiding direct sunlight. Contents sold by weight not volume. Some settling may occur. Notice: Use this product as a food supplement only. Do not use for weight reduction.

Customer Reviews

Customer Reviews

4.59/5

4036 reviews

5
4
3
2
1
Flavor
4.8
Texture
4.8
Appearance
4.8
Dissolution
4.7

Customer reviews

Line K.

09/11/2025
Flavor
5
Texture
5
Appearance
5
Dissolution
5

Speculoos

I’ve tried multiple flavours but the speculoos one is my fave. I mix halve a portion in with quark, it gets very thick which is normal for casein but personally I like it that way. Dissolves well without any lumps.

Patricia A.

04/30/2026
Flavor
5
Texture
5
Appearance
5
Dissolution
5

Chocolate

I've already tried and really liked the casein. The chocolate flavor is very good, it dissolves well and is thicker than whey — which, for me, is great. I usually mix it with water and plant-based milk and it's fantastic. It's also ideal for making a "porridge"!

Nicolas L.

04/07/2026
Flavor
5
Texture
5
Appearance
5
Dissolution
5

Ideal as an iced snack for summer

Very satisfied with this product. The Prozis quality is there, as always. The packaging is neat, the solubility/texture is impeccable, and the results meet my expectations. I recommend it without hesitation!

Rui M.

03/22/2026
Flavor
5
Texture
5
Appearance
5
Dissolution
5

I've been using 100% real casein regularly and it's been an excellent option.

I've been using 100% real casein regularly and it's been an excellent option, especially at night. The slow digestion helps me stay full for several hours, avoiding those cravings between meals. I feel a more consistent muscle recovery and less fatigue. As someone over 50, I clearly notice the difference when I use this type of quality supplement—it helps me maintain muscle mass and dietary discipline. Good texture, mixes well, and the taste is quite pleasant. I recommend it to anyone who takes their training seriously and wants to focus on recovery.

Ivan D.

02/23/2026
Flavor
5
Texture
4
Appearance
5
Dissolution
4

White chocolate

I tested the white chocolate flavor, and it's really nice! The texture is a bit thick, but it dissolves evenly, giving it a good texture and appearance. Excellent value for money! I'm going to try other flavors!

Mario L.

12/28/2025
Flavor
5
Texture
5
Appearance
5
Dissolution
5

Good quality casein powder.

It has a good taste and texture, and it dissolves very easily.

Sergio F.

12/10/2025
Flavor
5
Texture
5
Appearance
5
Dissolution
5

Top

Very creamy and satisfying, with a sweet white chocolate flavor that isn't cloying. Perfect for nighttime; with just a little water, it becomes a pudding-like consistency.

George K.

10/30/2025
Flavor
5
Texture
5
Appearance
5
Dissolution
5

RESULT

Great taste and solubility. Awesome results, especially after the evening dose. I wake up more rested

Angelica P.

09/06/2025
Flavor
5
Texture
4
Appearance
3
Dissolution
5

Excellent

Excellent and very functional, I use it both as an addition for a quick snack and as a base for protein ice creams

Claudio S.

07/31/2025
Flavor
5
Texture
5
Appearance
5
Dissolution
5

Chocolate flavor

Great flavor and just the right density, with plenty of protein.

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100% Real Casein - 4 lb

$52.99

286
In stock
  • Option

  • 4 lb

  • 2 lb

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1

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