L Carnitine Injectable: Boost Energy and Metabolism L Carnitine Injectable Factor Health MD Introducing the Burn Bundle A targeted combination of MICC and L carnitine designed to support energy, metabolism, and recovery. This dual injection approach works at the cellular level to help support how your L Carnitine Injection Levocarnitine IV 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