l-Arginine is a safe, versatile amino acid supporting protein synthesis and serving as a precursor of nitric oxide.

Cardiovascular Health: In the body, the metabolism of l-arginine leads to the formation of nitric oxide. Arginine-derived nitric oxide is an important catalyst for healthy dilation of blood vessels, circulation, and blood flow. In a prospective, double-blind trial, l-arginine supplementation supported healthy endothelial function in blood vessels of male volunteers. In other studies, l-arginine promoted healthy platelet function and enhanced exercise tolerance. Additional trials indicate that l-arginine may support healthy lipid metabolism and moderate lipid peroxidation, enhancing its cardiovascular support properties.

Support For Immune Function And Healthy Tissues: Arginine has demonstrated immuno-stimulatory activity and may promote the utilization of nitric oxide by scavenger cells for defense mechanisms. Enhancement of immune messenger compounds has also been observed in several studies with l-arginine. In a study involving elderly individuals, l-arginine facilitated healthy tissue recovery, accelerated tissue repair and supported immune health.

Male Sexual Function: In men with low urinary nitric oxide values, l-arginine may support healthy sexual performance. Some but not all research involving l-arginine supplementation for sperm motility have produced positive results.

Growth Hormone Support: Arginine plays a role in the synthesis of hormones such as insulin and growth hormone, and has demonstrated the potential to support glucose metabolism and growth hormone production respectively.