Unlike regular whey, which is a by-product of cheese production, native whey is derived directly from milk of cows that are grass-fed without the use of hormones and antibiotics. During the cheese process, normal whey is subjected to multiple heat steps which ‘denatures’ (damages) the delicate protein molecules. The more a protein is damaged the less it can do for you which is why PÜR NATIVE™ has higher bioactive compounds, leucine and bio valuable levels than regular whey!