Formulated from Naka Platinum, Pro BCAA contains essential amino acids that must be obtained through the diet; they cannot be made in the body. Branched chain amino acids (BCAAs) are the most abundant of the essential amino acids. The BCAA category includes three amino acids: leucine, isoleucine and valine. BCAAs are known to help to prevent the onset of muscle soreness so you don't have to get stiff the day after a heavy workout. BCAA assists in building lean muscle tissue when combined with regular resistance training and a healthy diet.