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Arginine 500 mg 100 caps by NOW

Arginine is a conditionally essential basic amino acid involved primarily in urea metabolism and excretion, as well as in DNA synthesis and protein production.* It is an important precursor of nitric oxide (NO) and thus plays a role in the dilation of blood vessels.*

The L-Arginine used in this product is pharmaceutical grade.

Natural color variation may occur in this product.

• Conditionally Essential Amino Acid
• Nitric Oxide Precursor*