Whey protein isolates (wpi) are the purest form of whey protein that currently exists. wpis are costly to use, but rate among the best proteins that money can buy. that's why they're the first ingredient you read on the gold standard 100% whey label. by using wpi as the primary ingredient along with premium ultra-filtered whey protein concentrate (wpc), we're able to pack 24 grams of protein into every serving to support your muscle building needs after training. on's attention to detail also extends to mix ability. This superior quality powder has been instant zed to mix easily using a shaker cup or just a glass and spoon. there's no doubt that this is the standard by which all other whey proteins are measured. Whey protein isolate (wpi) main ingredient, whey protein micro fractions from whey protein isolates & ultra-filtered whey protein concentrate, over 4 grams of glutamine & glutamic acid in each serving, more than 5 grams of the naturally occurring branched chain amino acids (bcaa).