Now Foods L-Arginine 500mg with Amino Acid | For Urea Metabolism & Excretion | Capsule

Now Foods L-Arginine 500mg with Amino Acid Capsule contains l-arginine as its main ingredient. L-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.