BCAA or glutamine? This eternal question is no longer debated, because the answer is: both! Supplementing with them can be beneficial before, during, and after intense or prolonged training sessions, as a high percentage of your solid muscle mass is made up of BCAAs (L-leucine, L-isoleucine, L-valine) and glutamine (working together with other amino acids). So why not use both now? With BioTechUSA BCAA + Glutamine Zero, you can easily and conveniently supplement both. Don’t stop halfway—give your muscles an extra boost!