Throughout the body is a complex system of arteries, veins and capillaries through which the blood transports nutrients to cells, carries heat from the inner body to the skin and moves waste material to channels of elimination. The circulatory system is like a network of heavily traveled highways that keeps all components of the body connected and up to speed. Our goal is to maintain the condition and tone of the blood vessels so the “traffic” flows freely. Swanson Super Strength L-Arginine is an antioxidant amino acid that helps encourage the production of nitric oxide, a compound that helps keep healthy blood vessels dilated to promote blood flow. Each serving delivers 850 mg of L-Arginine.