Acetyl L-Carnitine 500 mg 120 Veggie CapsAntioxidant Protection For The Brain Vegan Dietary Supplement Non GMO Acetyl L Carnitine is an amino acid found in most cells in the body, including brain, nerve, heart, liver and sperm cells. Acetyl L Carnitine supports energy production via the metabolism of fatty acids to yield the universal energy molecule ATP. As an antioxidant, Acetyl L Carnitine helps to protect neurons against the corrosive superoxide radicals.