Benefits of L carnitine injections are aplenty! This injection is a great way to boost your energy levels, help with weight management, and even promote healthy heart function. Studies show that Injectable L Carnitine How It Works & What to Expect? What Is L Carnitine: Benefits, Dosage, And Side Effects LiveLeanTV LEVOCARNITINE INJECTION, USP1 g per 5 mL vial and 4 g per 20 mL vialFOR INTRAVENOUS USE ONLYRx Only