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 Amazon.com: Top Secret Nutrition Fireball Liquid L Carnitine with Paradoxine Stim Free Weight Management, Energy, & Exercise Performance 16 Ounces, 21 Servings (Cherry) : Health & Household Does Carnitine Cause Body Odor? Lume Deodorant Acetyl L Carnitine: Benefits, Forms, Dosing, and Side Effects Dr Brad Stanfield If you are like a lot of people, you may have never heard of carnitine but this important nutrient is critical for our body's ability to optimally burn fat required for energy.