NOW Foods
L-Arginine, Double Strength, 1,000 mg, 120 Tablets
Amino AcidsConditionally Essential Amino AcidNitric Oxide PrecursorNon-GMOA Dietary Supplement & nbsp;Vegetarian/VeganKosherFamily Owned Since 1968GMP Quality AssuredArginine 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.