L Carnitine Injections VITAstir Clinic L Carnitine Benefits for Male Erectile Dysfunction L Carnitine Liquid Benefits Explained: A Guide The Science of Good Health What Is CoQ10 and L Carnitine, and How Can It Change Your Life? iThrive Essentials There's a reason L carnitine keeps showing up in PCOS research Because PCOS is closely tied to insulin resistance, inflammation, and metabolic dysfunctionand L carnitine plays a role in energy metabolism and fat utilization.