From Manufacturer''s Label:BCAA 1000 from Optimum Nutrition delivers 1000 mg of Branched Chain Amino Acids in a 2:1:1 ratio of Leucine to Isoleucine and Valine. Use it between meals, before training or after finishing your workout to augment your daily intake of amino acids for muscle support.Our Mega-Size BCAA supports muscle building & recovery effort in easy-to-swallow capsules.Contains 200 capsules.100 servings per container.Manufactured by: Optimum Nutrition