The Role of l Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation What Is CoQ10 and L Carnitine, and How Can It Change Your Life? iThrive Essentials Levocarnitine Tablets (330 mg) Levocarnitine Oral Solution (1 g 10 mL multiple unit container) Levocarnitine Oral Solution (Sugar Free) (1 g 10 mL multiple unit container) For oral use only. Not for parenteral use. 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