(SW866)L-Arginine & L-Ornithine 100 CapsSupports cardiovascular wellness Encourages lean muscle production Nitric oxide precursor Supports increased vitality Life extension enthusiasts, body builders and health proponents have been telling the world of this amino acid combination for quite a few years now, and the science is catching up to their claims. Arginine is integral to the production of nitric oxide. It's an important substance involved with everything from cardiovascular function