NOW Foods L-Arginine 500 mg is a dietary supplement containing L-Arginine, an amino acid that plays an important role in protein metabolism and the production of nitric oxide in the body. Each capsule provides 500 mg of L-Arginine, making it a convenient addition to a daily wellness routine. L-Arginine supports healthy blood circulation, cardiovascular function, and overall physical wellness. It also helps support normal vascular function and the body's natural nutrient and oxygen delivery processes. L-Arginine is involved in protein synthesis and may support active lifestyles and general physical performance. The easy-to-take capsule format makes daily supplementation simple and convenient.