Extreme whey is a blend of 2 cold processed microfiltered whey concentrates and whey isolate which is easy to drink and easy to digest whey isolate is 90 pure protein by weight and is the purest and most expensive form of whey protein that exists unlike many companies extreme nutrition have used 3 differing whey sources so we can bring you a product with a superior amino acid profile to rival products extreme whey contains a full spectrum of amino acids and is particularly high in branch ch