Description Ornithine is a precursor of Citrulline and Arginine and, when given orally, has very similar biological effects. It is a naturally occurring Amino Acid and is different from Arginine in that it is not found incorporated into body Proteins. Ornithine can be converted by the body into Arginine, Glutamine or Proline, although it may enter the Mitochondria more readily than Arginine. It takes part in the release of Growth Hormone and is often used in conjunction with Arginine. It helps to maintain and build up the Immune System and to regenerate the Liver. Ingredients Each capsule delivers: L-Ornithine HCI 500mg Encapsulated with: Capsule Shell (Hydroxypropyl Methylcellulose), Cellulose, Magnesium Stearate, Silicon Dioxide. Contraindications This product is not recommended for children, or pregnant or lactating women. Directions 1 to 3 capsules daily.