BCAA Plex contains three essential branched chain amino acids (BCAAs): leucine, isoleucine, and valine and the cofactors vitamins (C and B6 that is the only vitamin directly tied to protein intake – the more protein you eat, the more B6 you need). The Branched Chain Amino Acids (BCAAs) are named because of their unique branched chemical structure. They are essential as the body cannot produce them from other compounds and have been investigated for their potential anti-catabolic (preventing muscle breakdown) and anabolic (muscle building) effects. Also, BCAAs increase nitrogen retention, protein synthesis, muscle tissue recuperation and increase the endurance exercise capacity. They are accountable for up to 90% of the total amino acid uptake by the muscles.