USN BCAA Syntho Amino Stack is a combination of the Branched Chain Amino Acids (BCAAs), uptake enhancers and testosterone maintaining zinc. The BCAAs, which comprise of the essential amino acids Leucine, Isoleucine and Valine, make up approximately one third of skeletal muscle in the human body.
- Contributes to normal protein synthesis
- BioPerine to aid absorption
- Aids maintenance of normal testosterone levels