L Carnitine, 500 mg, 30 vegetarian capsules 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 Creatine & Acetyl L Carnitine Energy Plus, 0.51 lb Elevate Your Heart Health with L Arginine Powder Rexdrive Amino with L Arginine HCl, L Citrulline, Acetyl L Carnitine Arginate DiHydrochloride, and Glycine Propionyl L Carnitine HCl, Men's Formula, 60 Veggie Capsules L Citrulline vs L Arginine: Key Differences and How to Choose the Right Supplement