L Carnitine Dosage Guide: How Much Should You Take? Momentous Acetyl L Carnitine 60 Servings Amazon.com: FRONTLINE FORMULATIONS L Carnitine, Stimulant Free, Enhances Energy and Metabolism, Increased Energy and Endurance, Amazing Flavors, Veteran Owned and Operated (Blue Coconut Lemonade) : Health & Household How L Carnitine Helps with Fat Metabolism 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