Cialis L Arginine L Carnitine Erectile Dysfunction: What the Evidence Shows and Practical Considerations Oral Acetyl L Carnitine treatment in hepatic encephalopathy: view of evidence based medicine Annals of Hepatology 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 Ditch arginine and go for L citrulline! This common blood flow improving ingredient has better absorption, boosts nitric oxide more effectively, and is way gentler on your stomach. If you take pre workout, check L Carnitine Linus Pauling Institute Oregon State University