L Carnitine with Apple Cider Vinegar EC Sports Supplements How to Take L Carnitine Correctly to Boost Your Training Healthfarm Healthfarm Nutrition 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. Stack smart, shred hard. OxyShred + Acetyl L Carnitine = your ultimate fat burning duo Boost energy, fire up your metabolism, and elevate your mood. l Carnitine Supplementation in Recovery after Exercise