Acetyl L Carnitine & Alpha Lipoic Acid Metabolics 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 Physician Naturals Alpha Lipoic Acid Plus Acetyl L carnitine HCL 1600 Mg 1, 600 Mg Per Serving Acetil L Carnitina 400mg Spring Valley + Acido Alfa Lipoico 200mg 50 caps