NOW Foods, L-Arginine 1,000 mg, Nitric Oxide Precursor*, 120 Tablets - 2 Packs

L-Arginine is 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.

Now Foods - L-Arginine, 1000 mg - 2 Pack