NOW Foods L-Arginine 500 mg is a popular amino acid supplement, in a popular potency. People usually use NOW L-arginine to promote better circulation and healthy blood pressure, but it's also taken at bedtime to increase natural HGH release. Arginine supports cardiovascular health because it's the primary precursor to nitric oxide (NO), the body's vasodilator which relaxes blood vessel walls enhancing circulation.

$ 10.95