When to Take L Carnitine for Optimal Training Benefits Transparent Labs Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get Amazon.com: NeuropAWAY Elements N Acetyl L Carnosine 600mg 60CT Acid Resistant Capsules Third Party Tested Manufactured in a CGMP Facility : Health & Household The structural formula of L carnitine and Acetyl L carnitine. Download Scientific Diagram Carnitine, Acylcarnitines and Beta Oxidation