Acetyl L Carnitine: Benefits, Forms, Dosing, and Side Effects Dr Brad Stanfield Acetyl L Carnitine Powder, 3 oz. NOW Foods Fruitful Yield Acetyl L Carnitine 400 mg with Alpha Lipoic Acid 200 mg, 120 Capsules (66088) Puritan's Pride Acetyl L Carnitine 500 mg L Carnitine Protocol for Life Balance 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