BCAA Extreme can be used during the longest, strongest and most intense training sessions. It represents the next generation of amino acid formulas with a cutting-edge 4:1:2 ratio of L-Leucine, L-Valine and L-Isoleucine as well as including a unique blend of magnesium, calcium and Vitamin C. BCAA Extreme is a BCAA powder capable of fighting fatigue and supporting your immune system during the most intense workouts imaginable. Branch Chain Amino Acids have been used by athletes and those who lead an active lifestyle for years. But despite being one of the most tried and tested products in sports nutrition, we at THE PROTEIN WORKS believed we could improve it. So we sourced the purest form of premium grade L-Leucine, L-Valine, L-Isoleucine and then blended it with a select number of vitamins and minerals that were proven to work with our BCAA’s to reduce tiredness and fatigue, contribute to normal muscle function and protein synthesis and fight fatigue when you need it most.