BCAA 1000 Caps contains a potent balance of Branched Chain Amino Acids which are building blocks of muscle mass and size. Metabolized directly in the muscle, BCAAs, may improve nitrogen retention by sparing other amino acid groups for repair and rebuilding. Beyond The Basics Easy-To-Swallow Capsules Leucine, Isoleucine, & Valine in 2:1:1 Ratio Wide Variety of Available Sizes Supports Muscle Building & Recovery Efforts