Ornithine HCl is the nonessential amino acid, ornithine, bonded with hydrochloride (HCl) to assist with absorption. Ornithin is involved in removal of bodily wastes and fatigue-causing metabolites in the muscles. Ornithine HCl works to promote energy and athletic endurance.* It is commonly taken as part of a preworkout regimen. Ornithine HCl also promotes healthy skin, supports healthy liver function, and may even help promote healthy sleep.** These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.