Lipoic acid was chosen as the antioxidant of choice because it functions in concert with acetyl L-carnitine in energy production and the synthesis of the neurotransmitter, acetylcholine. Lipoic acid and acetyl L-carnitine are produced by the cell and present in the mitochondria. Lipoic acid is also one of the more potent natural antioxidants present in the body with the ability to protect both lipid and water-soluble components.