First and foremost I would like to thank you for introducing us such a useful and informative web site. I have impotence problem for a long time. The main issue about me is that I can have an erection but can not maintain it; it ends within seconds. My doctor diagnosed venous leak in my penis which means that blood escapes from my veins as soon as it fills them.
So far I have tried many herbal products to gain normal erection but almost all of them failed. For instance I have tried L-Arginine, Pycnogenol, Ginkgo Biloba, Korean Ginseng, Horny Goat Weed, Maca and Fish Oil but as you stated in your site, all of them just aided in Nitric Oxide level; they allowed more blood to flow in the penis but they did not help the blood to stay in there as blood escaped from the veins.
Recently I used a herbal pill that is a combination of Gotu Kola, Horse Chestnut, Butcher's Broom and Hesperidin with another product called Vitamin Ester-C as I have heard that Gotu Kola and Horse Chestnut is used for varicose veins in legs and Ester-C is useful in vein repair. But after a week of use, I started to have casual and random erections; I mean while having a rest, watching TV or even walking.
So I quit using those pills. I am now eating seeded grape as I heard that grape seed has a vein repairing function. I will also start pomegranate juice soon as it might boost my erections.
Shortly I will be so glad if someone can suggest me any herbs, vitamins or anything that have vein repairing function because my main problem is maintaining erection, not having it. I mean I need a remedy that is not mainly oriented in Nitric Oxide but vein repairing.