L-Carnitine also known as levocarnitine, is an amino acid that your body produces naturally. This compound plays a key role in how your body utilizes fat for energy. It’s naturally produced in the body, primarily in the liver and kidneys, and it helps transport fatty acids into your cells’ mitochondria, where they’re burned for energy.
While your body makes some L-Carnitine on its own, and you can also get it from foods like red meat and dairy, some people take it as a dietary supplement, usually through injections, for a more concentrated dose which is directed into the bloodstream or muscle tissue. L-Carnitine injections are fast, efficient and often used by people who want noticeable results.