1,260 mg acetyle L-carnitine HCl per serving Antioxidant formula With added zinc Caffeine-free Drug-free Acetyl L-carnitine is an active compound, the acetic acid ester of L-carnitine. L-carnitine is a compound containing amino acid, also naturally produced in the human body. As carnitine is a component of the fatty acid transport system, the energy stored in fats can be used through it, and therefore it is necessary to turn fat into energy. Zinc contributes to the normal metabolism of fatty acids and maintaining normal levels of testosterone in the blood. Zinc contributes to the normal metabolism of macro nutrients and therefore has a crucial physiological function.