When to take L carnitine: Dosage, forms, and side effects MUSCLE GEAR L CARNITINE 3000MG myneedpro.com L Carnitine L CARNITINE 3000 MG (EU) Muscle Rulz Store The Right Way to Take L Carnitine to Boost Your Training 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