With a precision-engineered matrix that contains whey protein concentrates, hydrolysates, and isolates, as well as egg albumin and micellar casein, Combat is the ultimate timed-released protein super-food! Feeds Muscle Up to 8 Hours Fast, Medium & Slow Releasing Protein Sources Added Digestive Blend for Maximum Utilization Maximum Muscle Growth Because each of the distinct protein sources found within Combat digest at varying rates, amino acids are not only flooded into the bloodstream within minutes after consumption, but will continuously be trickle fed to your muscles for up to 8 hours afterward!