Rexdrive Amino with L Arginine HCl, L Citrulline, Acetyl L Carnitine Arginate DiHydrochloride, and Glycine L Carnitine vs L Arginine: Understanding Their Differences and Benefit Fitness Health Each serving contains L Arginine 5 gm, L Carnitine 500 mg, DHA (10%) 200 mg, Proanthocyanidin 75 mg, Vitamin B6 2.5 mg, Niacinamide 18 mg, D Panthenol 5 mg AgeX L Carnitine + L Arginine Fat Burner & Pre Workout How to Take L Carnitine Correctly to Boost Your Training Bodybuilding.com N Acetyl L arginine methyl ester hydrochloride Chem Impex