(SW1238)L-Ornithine - Free Form 500 mg 60 Veg CapsSupports a healthy stress response Helps eliminate excess nitrogen from the body Arginine precursor The free form amino acid L ornithine is a key player in the urea cycle, which helps eliminate excess nitrogen and synthesize arginine, another important amino acid. Swanson L Ornithine is a pure form of this vital amino acid, suitable for daily supplementation. These statements have not been evaluated by the Food and Drug Administration. This product is