Acetyl L Carnitine Capsules 500mg Simply Supplements Amazon.com: Doctors Best Acetyl L Carnitine 1000 mg Per Serving Acetyl L Carnitine Supplement for Men & Women, Supports Brain & Nerve Cell Function, Mental Focus, Helps Generate Cellular Energy 60 Veg Carnitine: the claims and why it may not work Supplement of the week: L Carnitine! This one doesn't just boost fat metabolismit can also improve recovery, endurance, and even brain function. If you're serious about performance and longevity, this might be Amazon.com: Natural Factors Acetyl L Carnitine 500 milligrams, 60 Vegetarian Capsules : Everything Else L Carnitine Linus Pauling Institute Oregon State University