Get ready to absorb 250% more key amino acids (BCAAs + Arginine and Glutamine) and boost your nitrogen retention by 32%. In short, get ready to make more muscle.* Protogen contains 4 ultra-premium protein sources and clinically-proven Aminogen®, a revolutionary patented enzyme system that helps your body break down and digest protein faster and much more efficiently.* Aminogen® helps maximize the amount of amino acids released from protein in foods and supplements, allowing you to absorb more muscle-building amino acids.* What's the big deal about amino acids? They help you in 5 major ways: