BCAA 2:1:1 Glutamine is a muscle enhancer, the branched chain amino acids (BCAA) are leucine, isoleucine and valine. These amino acids promote muscle maintenance and growth in people who play sports. It has properties that provide protection against muscle damage, to prevent injury during exercise. Vitamin B6 is a water-soluble vitamin and plays a key role in the conversion of proteins consumed in the diet to amino acids that will eventually form part of muscle proteins. Its consumption is ideal before and after training.