Creatine vs L Carnitine: Benefits and Key Differences Wellversed Can We Take L Carnitine and Creatine Together? Prorganiq 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 L Carnitine Uses & Benefits Explained: A Complete Guide The Science of Good Health Acetyl L Carnitine