Maximum Strength 500mg L-Arginine per serving May help support healthy blood flow* L-Arginine promotes Nitric Oxide production, which helps support circulation and muscles.* L-Arginine may help maintain heart health and plays various roles in protein metabolism.* * These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Country of Origin: USA Weight (lbs): 0.21