My Nutriplus L Carnitine Shot Experience: Energy Boost & Fat Burn! Acetyl L Carnitine is more thought of as a fat burner. It's actually powerful tool for athletes looking to improve endurance, energy, and mental performance. Here's how you can integrate it into your routine for Acetyl L Carnitine for Erectile Dysfunction: What the Evidence Shows and How to Use It Practically Acetyl L Carnitine: Boost Focus & Cellular Energy Pro Hormones