Inner Armour L-CARNITINE LIQUID 450g - L-Carnitine is a vitamin-like molecule that serves numerous functions in the body. Both Acetyl L-Carnitine and L-Carnitine Fumarate are closely related to amino acids, and generally function as amino acids, but strictly speaking are ammonium compounds derived from the amino acid Lysine. These Carnitines are used by the body to transport long chain fatty acids to the mitochondria in your cells, where they are burned for energy.14,34,35 Since this fat burning is such a major source of muscular energy, deficiencies in either compound may be manifested as low energy levels and muscular weakness. Acetyl-L-Carnitine deficiencies can also appear as mental confusion or cloudiness. Research recently published in the online journal Clinical Nutrition indicates that l-carnitine and alpha lipoic acid reduce age-related oxidative stress and increase energy production.