AF-8 is formulated with pharmaceutical grade L-arginine to encourage the production of nitic oxide.

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The metabolic basis of arginine nutrition and pharmacotherapy

As an essential precursor for the synthesis of proteins and other molecules with enormous biological importance (including nitric oxide, urea, ornithine, proline, polyamines, glutamate, creatine, agmatine, and dimethylarginines), arginine displays remarkable metabolic and regulatory versatility.

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*Always read the label. Use only as directed. Vitamin Supplements should not replace a balanced diet. If symptoms persist consult your healthcare professional.