L Carnitine Boost: Does It Work? Navo Amazon.com: Momentous Acetyl L Carnitine Brain Function & Cognitive Support Supplement Boosts Mental Clarity & Energy Production NSF Certified for Sport 500 mg 60 Servings : Health & Household Creatine & Acetyl L Carnitine Energy Plus, 0.51 lb Acetyl L Carnitine (ALCAR) 150 x 500 mg capsules by Double Wood Supplements Cognitive, Memory, Stamina Support : Target 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