Best Time to Take L Carnitine: Morning vs Evening for Better Fat Loss & Performance N2 L Carnitine 1500 Sport x120 caps 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 L Carnitine Supplements in India Fast&Up When to Take L Carnitine for Optimal Training Benefits Transparent Labs