L Carnitine: The Energy Booster Your Body Loves Turn fat into fuel and power up your recovery with one of our favorite performance vitamins. Boosts metabolism & fat burning L Carnitine Male Enhancement: What the Evidence Actually Shows 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 for Male Erectile Dysfunction: What the Evidence Shows Acetyl L carnitine for erectile dysfunction