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 Simple Truth Alpha Lipoic Acid & Acetyl L Carnitine HCl Capsules, 60 ct Smith's Food and Drug Acetyl L Carnitine Supplement Allergy Research Group Doctor's Best Acetyl L Carnitine, 1000 mg Per Serving, 120 Veggie Caps Acetyl L Carnitine Biotics Research Thermogenic supplement with Acetyl L Carnitine and BioPerine ALC 1000 90cps