CarniBlast Liquid L Carnitine 3000mg Energy Supplement Bricker Labs Acetyl L Carnitine 100 500mg Capsules L Carnitine Liquid Force Factor Pure L Carnitine Tartrate 1000 mg MLnaturals 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 How L Carnitine Helps Turn Fat Into Energy (Without Stimulants)