Amino acid naturally found in red meat, pountry, fish and dairy. It makes the blood vessels to open wider for improved blood flow. L-arginine also stimulates the release of growth hormone, insulin, and other substances in the body. It is present in a vary range of products like fortified food supplement or in dietary supplements, capsules, tablets or powder form. Oral grade - This material meet the standards for safe human ingestion and can safely come into direct contact with food products. It is also used as an active ingredient for intravenous nutrition products.