L Carnitine: Does It Really Help With Fat Loss? Supplement Store Lebanon Best Supplements in Beirut Scitec Nutrition Lebanon 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 3000 mg Ampules 25 ml Amazon.com: Acetyl L Carnitine 1,000mg Per Serving, 150 Capsules (ALCAR for Brain Function Support, Memory, Attention, and Stamina) Acetyl L Carnitine that is Third Party Tested by Double Wood : Everything Else Liquid L Carnitine Energy, Metabolism & Fat Burning