L-carnitine is very similar to the nonessential amino acid carnitine. It performs some of the same functions, such as helping metabolize food into energy. L-carnitine is synthesized in the body from the amino acids lysine and methionine. L-carnitine transfers long-chain fatty acids, such as triglycerides into mitochondria a cell's energy powerhouse, where they may be oxidized to produce energy. L-carnitine is a very popular supplement that promotes muscle growth and development. It is also used for fat-burning, increasing energy, and improving resistance to muscle fatigue. Supplement Facts Serving Size 1 Capsule Servings Per Container 60 Amount Per 1 Capsule Thiamin B1 25mg L-Carnitine 500mg Methionine 25 Other Ingredients Gelatin, Cellulose, Silicon Dioxide Directions: Take 1-2 capsules daily, preferably with a meal.