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