BioTechUSA’s flavoured BCAA Zero amino acid powder contains 2:1:1 ratio of leucine, isoleucine and valine amino acids that greatly enhance each other’s effect on building muscles and energising, and they have a natural, specific proportion in muscles. We have also added vitamin B6 to the product, which contributes to normal protein and glycogen metabolism, as well as to the reduction of tiredness and fatigue.