Cialis L Arginine L Carnitine Erectile Dysfunction: What the Combination Might Offer Cialis L Arginine L Carnitine Erectile Dysfunction: What the Evidence Shows and Practical Considerations L Carnitine & L Arginine ? L Citrulline vs L Arginine: Boost Your Performance! 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 Heart Healthy Stack