Description *amino acids *extra strength *keto friendly *nitric oxide promoter *informed-sport trusted by sport *a dietary supplement *informed-choice trusted by sport *steroid free *vegan *kosher *non-gmo *gmp quality assured citrulline is a non-essential amino acid that is an important intermediate in the urea cycle, functioning along with other amino acids to rid the body of ammonia, a by-product of protein metabolism. Citrulline also plays an important role in the healing process and in the maintenance of a healthy immune system. Suggested use take 1 tablet 1 to 2 times daily between meals. Other ingredients stearic acid (vegetable source), croscarmellose sodium, microcrystalline cellulose, vegetarian coating and silicon dioxide. This extra strength product has more l-citrulline (1,200 mg per tablet) that our regular strength product (750 mg per capsule).