Pro BCAA contains L-leucine, L-isoleucine & L-valine. the combination of these three amino acids make up Approx. a third of skeletal muscle in the human body. Taking Pro BCAA's before & after training can increase muscle growth & improve recovery. Take 3 tablets 30 minutes before training & another 3 tablets immediately after training.• Ideal to take before & after training • Rapidly absorbed • Optimal ratio of amino acids • Suitable for Vegetarians, Vegans & Gluten Free diets