100% BCAA is a 100% pure amino acid product. Amino acids are the building blocks of proteins that contribute to the growth and maintenance of muscle mass. The powder product contains three essential amino acids – Isoleucine, leucine and Valin - in a ratio of 2:1:1. Because of their chemical structure, together they form the group of branched-chain amino acids (BCAAs). The energy source, which consists of pure and natural ingredients, is suitable for athletes who train regularly or prepare for a competition. Thanks to the product's powder form and tasteless formula, it can be used in a variety of ways. Added to other dietary supplements or any other food, it perfectly supports training aimed at building muscle without fat. In addition to the 100% pure BCAAs, the product, like all BioTech USA products, consists of harmless and carefully selected ingredients.