Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe Amazon.com: Life Extension L Carnitine 500 mg, Energy Supplement, Memory Supplement Free Form Amino Acid, Nitric Oxide Support, Healthy Blood Pressure Gluten Free, Non GMO, Vegetarian 30 Capsules : Health & Household 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 Benefits: A Complete Research Based Guide