Essential for the production of energy and for the metabolism of lipids, l-carnitine is an amino acid that is one of the basic components of the daily diet. Its main role is to transport fatty acids into cellular mitochondria, where they are burned thanks to the beta-oxidation process. L-Carnitine transports fatty acids within the mitochondria. These power plants that are located inside the cells provide the latter with energy by metabolizing fatty acids. The use of the salified form with tartaric acid (L-carnitine tartrate) allows for better preservation of the product in normal environmental conditions.