BCAA Extreme emerged from the TPW™ Lab and has been used during the longest, strongest and most intense training sessions to ever take place at HQ. Why was this the Branch Chain Amino Acid of choice? Because it represents the next generation of amino acid formulas, has a cutting-edge 4:1:2 ratio of L-Leucine, L-Valine and L-Isoleucine and includes a unique blend of magnesium, calcium and Vitamin C. What all this means (put simply) is when we fused them all together we created a supplement capable of fighting fatigue and supporting your immune system during the most intense workouts imaginable.