About this item PROVEN RATIO: The 2:1:1 scientifically backed ratio of 3g L-Leucine, 1.5g L-Isoleucine, 1.5g L-Valine amino acids powder is the optimal ratio. Perfect for reducing muscle breakdown, aiding in muscle protein synthesis, and accelerating pre or post workout recovery in men and women. MUSCLE GROWTH - Each serving contains 6 grams of optimal ratio amino acids to help promote muscle recovery, strength, performance and muscle hypertrophy for athletes of all ages. Great option for powerlifters, bodybuilders and fitness athletes. SUGAR FREE - Enjoy our deliciously refreshing branch chain amino acids with zero sugar and zero carbs. Choose watermelon, fruit punch or green apple to rehydrate and recover after an intense workout, gym session or competitive event. Zero sugar for lean muscles and clean energy. BOOST ENDURANCE - High quality BCAAs play an essential role in protein muscle synthesis. Help encourage bigger, leaner, stronger muscles that can conquer more reps, more sets and more weight. Take before, during or after your workout. NUTREX RESEARCH - With over 20 years of Excellence behind our high quality and high potency supplements, we've been developing innovative formulas with superior taste powered by the most effective ingredients. Trusted by athletes in over 100 countries Nutrex Research continues to develop a wide array of results oriented products.