L-arginine is a very effective amino acid used both in aerobic sports, mixed, and anaerobic sports. By itself, however, is not so effective because of the large losses due during absorption and indirect metabolic pathways. The combination of arginine and esters solved this problem, because even at low doses of arginine ethyl ester, you will receive the same characteristics as with the very large doses of l-arginine. AEE is therefore a guarantee of better blood circulation, oxygenation, better endurance, strength and muscle mass. Also it provides improvement in the function of the immune system, cardiovascular system, and reproductive system. Longer distances, bigger weights, more visible muscle fibers.