NOW® Whey Protein is a delicious blend of three of the highest quality whey protein concentrates and isolates from around the world: Micro-Filtered, Ion-Exchanged and Enzymatically Hydrolyzed (partially predigested). This blend of specially processed whey proteins is designed to maximize amino acid absorption and Biological Value (BV). Extra L-Glutamine has been added (460 mg per serving) because of its important role in protecting muscle tissue from breaking down under stressful, vigorous physical activity.