Micellar Casein

From: £41.99

5.00 out of 5
  • Time release protein for up to six hours
  • 76% protein, 2.6g carbs and 0.4g fat per serving
  • Contributes to maintenance and growth of muscle mass
  • Free from added sugars, creamers and soy protein
Clear selection

What is Micellar Casein?

Micellar Casein is a slow release protein shake made with protein concentrate from EU sourced milk, produced by grass-fed cattle.

Casein protein can take up to six hours to completely digest and be utilised, making Micellar Casein the perfect protein product to help deliver your muscles enough protein for an extended period of time.

Micellar Casein now comes in an improved range of flavours, without resorting to adding sugars, corn syrups or creamers. Our Micellar Casein provides a product that mixes easily in a shaker and delivers a delicious shake.

Who is it for?

Micellar Casein has been designed for both men and women looking to take full advantage of casein’s slow release properties.

The product is slowly digested by the body, steadily releasing amino acids into your bloodstream. It’s therefore the perfect shake to take before bedtime or during extended periods between meals as it drips feeds your body protein for up to six hours, contributing to growth and maintenance of muscle mass.

Micellar Casein is a vegetarian product but is not suitable for vegans or coeliacs.

What are the benefits?

  • Slow release to balance protein levels over an extended period
  • Top quality protein with no added soy, sugars or creamers
  • Contributes to growth and maintenance of muscle mass

It is a known fact that our muscles are most susceptible to amino acids directly after exercise, but it is also important to ensure muscles receive enough protein after exercise to support the body throughout the entire recovery period.

Slow-release casein protein drip feeds the body amino acids, delivering an immediate hit as well as sustained protein absorption.

Recommended Usage

Consume one serving daily, ideally before bedtime. Alternatively, take Micellar Casein during the day when no food will be eaten for at least three hours.

Mix 33g, which is approximately three heaped 25ml measures (there is a scoop included in the tub), with 400ml water or skimmed milk in a shaker or blender. These are guidelines, and for a creamier or thicker shake, simply add more or less liquid to taste.

Once mixed, consume immediately. For exact measurements, we advise using weighing scales, as the scoop measures in millilitres rather than grams.

How is it made?

Reflex Nutrition’s Micellar Casein is made with EU sourced milk, produced by grass-fed cattle, with absolutely no bovine growth hormone or banned antibiotics. We specifically do not use milk or whey products from the USA because of the widespread use of growth hormones and antibiotics.

The process involved in making our Micellar Casein employs state of the art ultra filtration that is carried out at low temperature to capture every single valuable milk protein in its native form. By using a low temperature, we are able to carefully filter out unwanted fat and sugars without harming the protein molecules, resulting in an exceptional casein powder.

Our Micellar Casein does not contain any other types of added protein, including soy, glycine or anything that would water the product down. As a result, it delivers more protein than nearly any other time release protein shake on the market today, with a hefty 76% guaranteed protein per serving.

How does it taste?

With new flavour technology, our Micellar Casein tastes delicious. We’ve dramatically improved the flavour without adding sugars, corn syrups or creamers.

Micellar Casein comes in five flavours:
Banana and custard
Chocolate mint perfection
Chocolate perfection
Strawberries and cream
Vanilla ice cream

The science behind it

Reflex Nutrition was one of the first companies in the world to introduce Micellar Casein as a pure unadulterated protein supplement to the market back in the 90s. Since then, the quality of our product has improved along with the flavour and mixability, and today it is one of the go-to time release protein powders.

Casein provides a slow-release protein source to provide muscles with a sustained level of amino acids. Once the casein hits the stomach acids, it turns into a gel, slowing digestion and allowing the protein to be released over a sustained period of time, for up to six hours while you’re asleep or resting. When the body is asleep it goes without nutrients, which is where slow-release protein comes in. By providing a protein that the body digests slowly while you sleep, your muscles are provided with amino acids to aid the maintenance and growth of muscles throughout the recovery period.

Micellar Casein from Reflex Nutrition is not to be confused with acid casein or caseinates which are made using manufacturing processes which can denature the protein, meaning the nutritional value of the protein is lessened.

Anything else?

Available in 1.8Kg and 909g tubs, with 54 and 27 servings respectively.

Suitable for

  • Vegetarians: Yes
  • Vegans: No
  • Coeliacs: No

Micellar Casein (all flavours) has been certified as Halal safe by The Halal Trust.

For further allergy advice, please read our suitability guide.


Milk Protein Concentrate (80% micellar casein, 20% native whey protein), Flavourings, Natural Colourings (fat reduced cocoa powder (chocolate varieties only), Betanin (strawberry variety only), Beta Carotene (banana and vanilla varieties only)), Carboxymethyl Cellulose, Artificial Sweeteners (acesulfame K, sucralose), LactoSpore® Probiotics (bacillus coagulans).

Nutritional Profile

Micellar Casein.indd

Product Label


3 reviews for Micellar Casein

  1. robin_turner88
    5 out of 5


    Mixes well and does not taste chalky like some of the other brands, sits really well as a night time protein. Using this with 100% whey as my daytime protein. Love them both!

  2. Mike
    5 out of 5

    (verified owner):

    Tastes great, mixes well. Best way possible to drop feed muscles overnight

  3. Andrew Simonds
    5 out of 5


    My favourite night time micellar casein protein of choice. Tastes great, mixes very well compared to others I’ve tried. Highest protein content of the lot too. Recommended!

Add a review