It is a high quality protein shake with a high BV (biological value) and 78% protein content that is 100% derived from whey protein. The wide ranging flavours of 100% Pure Whey is a combination of whey protein concentrate, whey protein isolate and added amino acids (L-glutamine, L-arginine and BCAAs). The non-flavoured version contains only whey protein concentrate, without any added sweeteners, colouring or flavouring.