L-Carnitine is a dipeptide made up of two other essential amino acids: L-Methionine and L-Lysine. It promotes energy and fat metabolism, and is found naturally in cells which use fat for energy. This formulation provides Free Form L-Carnitine to promote optimal absorption and assimilation.

L-carnitine is made in the body from the amino acids lysine and methionine, and is needed to release energy from fat. It transports fatty acids into mitochondria, the powerhouses of cells. In infancy, and in situations of high energy needs, such as pregnancy and breast-feeding, the need for L-carnitine can exceed production by the body. Therefore, L-carnitine is considered a "conditionally essential" nutrient.

Dairy and red meat contain the greatest amounts of carnitine. Therefore, people who have a limited intake of meat and dairy products tend to have lower L-carnitine intakes.