Acetyl L Carnitine (500 mg) w Alpha Lipoic Acid (200 mg) Robinson Pharma, Inc. L Carnitine 250 mg: Boost Energy & Enhance Metabolism Mountainside Medical Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get Myvitamins L Carnitine Tablets Performance Myvitamins 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