BCAAs, or Branched Chain Amino Acids are known as the building blocks of protein muscles and play a vital role in molecular development hydration when your body is dehydrated.* This supplement is a must-have for athletes for its numerous benefits. Some of the many benefits include hydration, enhanced performance and endurance, boosts energy, strengthens the immune system, and enhances metabolism.* BCAA's uses the scientifically proven, golden 2:1 ratio of these three amino acids: Leucine, Valine, and Isoleucine.