Protinex is a protine based supplement which can be consumed by people of all ages and gender.It is available at health stores and general stores.I used it before 6 months and I think its a good protine supplement.but one thing is keep in your mind is about its dosage, high dose may increase gastric problem.this protinex supplement is for our good health and stamina.we csn use it in milk or water.I like its chocolate flavour.