Fast becoming regarded as the ultimate whey protein blend, new Mutant Whey is a unique 5-Stage Whey Protein that supports muscle growth by increasing nitrogen retention in cooperation with intense weight lifting activity. New Mutant Whey has been developed after 28 months of dedicated research. It is the world’s first protein to use specially selected proteins, each with their own unique uptake rate. This 5-Stage Whey Protein allows each source its own unique delivery to your digestive system. Produced in Fit Food’s federally inspected GMP (Good Manufacturing Practices) licensed facility.