L Carnitine injection is recommended at 1 ampule every 2 3 days for best results. The L Carnitine is taken intravenously either by normal injection or using a butterfly needle. After taking this L Carnitine, you L Carnitine, 500 mg, 30 vegetarian capsules What Is CoQ10 and L Carnitine, and How Can It Change Your Life? iThrive Essentials ALCAR Supplement for Cognitive Function and Stamina PCOS Nutrition Center L Carnitine (120 Capsules)