USNs BCAA Power Punch is a deliciously refreshing, energy boosting intra-workout drink. The blend of BCAAs, Amino Acids and Vitamin B6 in this tasty drink helps give you an extra boost pre-workout and intra-workout. Branched chain Amino Acids - Leucine, Isoleucine and Valine - help contribute to growth of lean muscle mass, whilst Bioperine, L-Glutamine and added vitamins aim to support metabolism, healthy immune function and reduce feelings of fatigue. Maximise your training sessions, performance and reach your goals with help from these great-tasting drink powders.