Now Foods L-Arginine 1000mg 120 Tablets (2 Pack)

NOW L-Arginine comes in extra strength 1000 mg tablets and is non-GMO. 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.