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 Supplementation in Recovery after Exercise Injectable L Carnitine: What It Is, How It Works, and Who Should Use It Mesotherapy Cocktails, Exosomes Regenerative Skin Boosters CARNITOR (levocarnitine) Injection 1 g per 5 mL vial For Intravenous Use Only. L Carnitine Injection Levocarnitine IV