Acetyl-L-carnitine (ALC) is a physiological component of the L-carnitine amino acid family. It is an acetic acid ester of carnitine that facilitates movement of acetyl CoA into the matrices of mammalian mitochondria during the oxidation of fatty acids to produce energy thus possibly alleviating fatigue and improving athletic performance.
Acetyl-L-carnitine is better absorbed from the small intestine than L-carnitine itself. It also efficiently crosses the blood-brain barrier where it is utilized to enhance memory and facilitate learning, especially to combat the cognitive deficits associated with dementia and other degenerative mental disorders.
Acetyl L-Carnitine also has a role in treating male infertility by playing a crucial role in sperm metabolism and maturation which results in enhanced sperm motility.