Branched Chain Amino Acid Formula. Flavored Powder. 6 grams of BCAAs per Serving. 2:1:1 Ratio. 60 Servings. Branched chain amino acids (BCAAs), which include leucine, Isoleucine, and valine, comprise 35-40% of the essential amino acids in the body and are required for the maintenance of muscle during physical stress, such as exercise. Supplementing with BCAAs helps to promote protein synthesis (muscle building) and spare muscle tissue from being broken down for energy during intense training. Ultimate Nutrition Flavored BCAA 12,000 Powder contains a 2:1:1 ratio of Leucine, Isoleucine, and valine with each serving providing 6 grams of high-quality BCAAs in a convenient powder format. Taken on its own or combined with your favorite workout drink, Flavored BCAA 12,000 Powder mixes instantly for a delicious way to increase over all BCAA intake.