L-Arginine, 700 mg, 180 Veg Capsules, NOW Foods

Amino Acid Conditionally Essential Amino Acid Nitric Oxide Precursor Non-GMO A Dietary Supplement Vegetarian/Vegan Family Owned Since 1968 GMP Quality Assured 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.

Amino Acid Conditionally Essential Amino Acid Nitric Oxide Precursor Non-GMO A Dietary Supplement