Now Foods, Acetyl-L Carnitine, 500 mg, 200 CapsProduct Description Acetyl L Carnitine (ALC) is a modified amino acid that supports cellular energy production by assisting in the transport of fat into the mitochondria where it is converted into ATP (cellular fuel).* ALC is a highly bioavailable form of L Carnitine that can cross the blood brain barrier, where it helps to manage oxidative damage, supports mitochondrial function and helps to maintain normal neurotransmitter activity.* Natural color