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L-Arginine is a safe, versatile amino acid precursor of nitric oxide associated with promoting cardiovascular health, immune support, sexual function, and memory.*

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 research involving l-arginine supplementation for sperm motility has 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.*

Memory
Nitric oxide is also a mediator of neurotransmission in the brain, supporting memory under the circumstances of reduced intracellular arginine.*

What is the Source?
L-Arginine HCl is derived from the fermentation of soy and other vegetable sources and is ultra-filtered and highly purified.