Any erection relies on an increase of blood being able to enter the penis and to achieve this, your body needs to secrete high levels of nitric oxide, if levels are low no erection can occur. Levels of nitric oxide start to fall as men age and it's one of the commonest causes of impotence or erectile dysfunction. The good news is you can naturally increase secretion of the this sex chemical, by taking the herbs Ginseng, Horny Goat Weed and Cnidium. The reason why nitric oxide is so crucial to an erection is because nitric oxide helps to dilate the blood vessels which alvira blood into the penis, so these blood vessels can widen and the penis can swell in size and an erection is the visible result. These herbs are a natural alternative to prescription drugs and work fast to get you a rock hard erection.

If you want to get a rock hard erection and you want to get one naturally, the good news is you can with some natural erection supplements which are the subject of this article, lets take a look at how they work.