Whey protein isolates are the purest form of whey protein that exists today. They are expensive to use, but they rank among the best proteins money can buy. That's why they are the first ingredient you read on the Gold Standard 100% Whey ™ label. By using WPI as the main ingredient alongside premium ultrafiltered whey protein concentrate (WPC), we are able to pack 24 grams of protein into each serving to meet your post-workout muscle building needs. ON's attention to detail extends to mixability as well. This premium quality powder is instantly created for easy mixing with a shaker glass or just a glass and spoon. There is no question that this is the standard by which all other whey proteins are measured. Main Ingredient of Whey Protein Isolate (WPI) -Whey protein micro-fractions of ultra-filtered whey protein isolates and whey protein concentrate -More than 4 grams of glutamine and glutamic acid in each serving -More than 5 grams of the naturally occurring branched-chain amino acids (BCAAs) leucine, isoleucine and valine in each serving -The "gold standard" for protein quality How to use Mix 1 scoop in 6-8 fluid ounces of cold water, milk or soft drink your choice. For best results, mix your shake 30-60 minutes after your workout, or have it as a snack at any time in your balanced, high-protein diet.