L-Carnitine USP (USP represents the standard of United States pharmacopeia) is an ammonium compound synthesized from the amino acids: lysine and methionine. It is important in the Beta-oxidation of fatty acids in the mitochondria because it transfers the long chain fatty acids into the mitochondria. This results in the release of energy. Administration of a derivative of this chemical has been found to be effective in increasing the level of plasma osteocalcin, a chemical correlated positively with the increase of bone mass. This might help prevent osteoporosis. L-Carnitine also possesses antioxidant properties and primarily protects cell membrane lipids from peroxidation. It also protects the muscle cells and endothelial cells from oxidative stress.