Usn bcaa amino gro powder is a high quality amino acid supplement it has been designed with some great ingredientsr usn bcaa amino drink to help you power through intensive training sessions amino acids assist protein synthesis in your muscles and prevent them from being broken downr usn bcaa amino gro powder provides you with 1750mg l leucine combined with 875g l isoleucine and l valine per serving for optimal resultsr usn bcaa amino gro provides us with vitamin b6 glutamine beta alanin