L Carnitine for Skin: How It Works and Its Benefits HydroPeptide Spain 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 What Are L Carnitine Injections Used For? L Carnitine: Benefits, Uses, and Side Effects Clinikally Most people think our L'Carnitine shots are just for weight loss but in reality they have a huge ton of different health benefits L Carnitine: aiding in fat metabolism enhancing exercise performance