BCAA Extreme can be used during the longest, strongest & 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 & L-Isoleucine as well as including a unique blend of magnesium, calcium & Vitamin C. BCAA Extreme is a BCAA powder capable of fighting fatigue & supporting your immune system during the most intense workouts imaginable. Branch Chain Amino Acids have been used by athletes & those who lead an active lifestyle for years. But despite being one of the most tried & 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 & then blended it with a select number of vitamins & minerals that were proven to work with our BCAA’s to reduce tiredness & fatigue, contribute to normal muscle function & protein synthesis & fight fatigue when you need it most.