Acetyl L Carnitine 500 mg L Carnitine, 500 mg Veggie Capsules Jarrow Formulas Acetyl L Carnitine HCl Vitazan Professional The difference between L Carnitine and Acetyl L Carnitine (ALCAR) Health4All Supplements don't replace the workbut they can support it L Carnitine helps your body turn fat into usable energy, so you can push harder and recover better. Consistency first. Supplements second. Results