What Are L Carnitine Injections Used For? L Carnitine: Unveiling the Science Behind its Role in Effective Weight Loss Aesthetics 360 Lash & MedSpa IV Carnitine Therapy Energy Boost & Metabolism Support Minnerva Clinic 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 6 Benefits of L Carnitine Injections MedHealth 360