PURNATIVE is a Native Whey protein which is derived directly from milk of grass-fed cows without the use of hormones and antibiotics. Cheese derived whey (most if not all other brands of protein) is a by-product of cheese production, during the cheese process, normal whey is subjected to multiple heat steps which denatures (damages) the delicate protein molecules. So choose PURNATIVE!!! #proteinheadquarters #nativewhey #wheyprotein #proteinpowder #supplements #vitamins #bodybuilding #motivation