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 The 5 Best L Arginine Supplements L Arginine and L carnitine , Arginine is an amino acid which we can also produce naturally . This increases your notice oxide production , human growth hormone and improves circulation. , These three Which Is Better: L Arginine or Citrulline