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 Acetyl L Carnitine + Glutamine is THE ultimate combo that works as hard as you do. Acetyl L Carnitine helps you tap into fat reserves, using them as energy for your gym session. Liquid L Carnitine Energy, Metabolism & Fat Burning L Carnitine for Fat Loss: Why Most Supplements Fail (and What Actually PEScience