Now Liquid L Carnitine 3000mg, 16 Fl oz L Carnitine 3000 Liquid Ingredient Spotlight: L Carnitine Source: Biosynthesised in the body from the amino acids Lysine and Methionine, L Carnitine is a conditionally essential nutrient involved in energy metabolism and fat transport. Key Benefits Benefits of L Carnitine:, When taken as a supplement, L Carnitine has been shown to have a beneficial impact on weight loss and improved brain function. It has also been linked to improved heart Fast&Up L Carnitine 3000 mg Triple Action Formula for Faster Fat Burn