NOW Foods Tri-Amino Arginine/Ornithine/Lysine - 120 CapsulesNow FoodsTri-Amino is a comprehensive product that combines three important amino acids into one easy-to-take formula. Now Foods Tri-Amino's Arginine and Ornithine are amino acids that are components of the urea cycle. Urea is the major end product of protein metabolism. Ammonia, the product of amino acid breakdown, is toxic and must be removed from the body. The urea cycle or the "ornithine cycle" describes the conversion reactions of ammonia into urea. Since these reactions occur in the liver, the urea is then transported to the kidneys where it is excreted. Lysine is an essential amino acid that is known for its role in the maintenance of nitrogen balance. Together these amino acids are critical for protein metabolism.Supports Protein MetabolismL-ArginineL-OrnithineL-LysineA Dietary SupplementSuggested UseAs a dietary supplement, take 4 capsules one or more times daily with juice or water before exercise or at bedtime.IngredientsNOW Foods Tri-Amino Arginine/Ornithine/Lysine - 120 CapsulesSupplement FactsServing Size: 4 CapsulesServings Per Container: 30Amount Per Serving%DVL-Arginine (Free-Form)1.2 g*L-Lysine (from L-Lysine Hydrochloride)1 g*L-Ornithine (from L-Ornithine Hydrochloride)0.9 g**Daily Value Not EstablishedOther Ingredients:Gelatin (capsule) and Magnesium Stearate (vegetable source).Contains no:Sugar, salt, starch, yeast, wheat, gluten, corn, soy, milk, egg, shellfish or preservatives.WarningsKeep out of reach of children.