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 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 Liquid L Carnitine Energy, Metabolism & Fat Burning Carnitine Deficiency: What Is It, Causes, Symptoms, and More Osmosis GLP 1 with L Carnitine, B12, and B6 Reduce Nausea and Fatigue Unlock Peak Performance & Fertility with L Carnitine! Did you know that injectable L Carnitine is a game changer compared to oral supplements? While oral L Carnitine has low bioavailability (only ~14 18%