Usn bcaa power punch is an effective bcaa intra workout it has been made with great ingredients that work to help provide you with the best nutrients for your bodyr amino acids are classified as essential or non essential essential amino acids cannot be manufactured by the body yet required for a healthy bodyr amino acids have the ability to send our body from a catabolic state muscle wasting to an anabolic state muscle building rapidly this is done by leucine isoleucine and valin