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 Top 7 L Carnitine L Tartrate Uses for Fat Loss Acetyl L Carnitine Powder 150g Applied Nutrition H&B L Carnitine Liquid 100.000 mg Energybody Ronnie Coleman L Carnitine XS 4000, Apple Bomb, 15.72 fl oz (465 ml)