BSN Amino X AminoX is a stimulant free, BCAA formula designed to support endurance during your workout and aid in muscle recovery post training, so you can push your performance to the next level. Featuring a 10 gram blend of essential BCAAs and the amino acids, L-Alanine, Taurine and L-Citrulline, AminoX will help your body recover from today’s workout and prepare for tomorrow’s. AminoX provides you with versatile, nutritional support for any type of workout regimen. BCAAs and the Body Amino acids are the building blocks of protein, and therefore, the building blocks of lean muscle. Branched Chain Amino Acids (BCAAs) refer to three specific amino acids - Leucine, Isoleucine, and Valine - that the body must obtain from either food or BCAA supplementation. BCAAs can be used by muscle cells as an energy source, which may help offset muscle breakdown during endurance exercise and help support recovery and repair after weight training. * As a result, BCAAs are a popular and relevant supplement among those who exercise regularly.