Micellar Casein from Reflex Nutrition is an instant mixing time-release protein product, it is made from fresh skimmed milk. It is not to be confused with acid casein or caseinates which are made using manufacturing processes which can denature the protein. The protein found in Reflex Micellar Casein is un-denatured, providing approximately 80% Casein protein and 20% Whey protein.. Mix 45g with 450ml water or skimmed milk in a shaker or blender. Consume one serving before bedtime. You can also take a serving before a prolonged preiod of time (more than 3 hours) where no food will be eaten. For athletes, bodybuilders or anyone striving to increase their daily protein intake, we offer our Protein formulas! Choose from Whey, Milk & Egg and Soya Protein formulas.