In 1998 the Nobel Prize was awarded for the discovery that blood flow is regulated by a simple chemical called nitric oxide. Blood flow into the penis is what creates an erection. Blood flow into women's genitals increases sensation and orgasmic intensity. It works like this: The amino acid L-Arginine is used by the body to make nitric oxide. Nitric oxide turns on an important enzyme that creates Cyclic Guanosine Monophosphate (c-GMP.) This relaxes smooth muscle, the kind in your blood vessels, and allows for blood flow.

Viagra™ works by increasing c-GMP by inhibiting another enzyme that breaks down c-GMP. More c-GMP means more relaxation of blood flow which means more erection. It is now being tried in women who while they obviously have no erection problems, may have poor circulation in the genital area.

Natural Sensation™ works differently. It is a cream which is applied to the vulva. This means that it does not act throughout the body but only in the genitals, eliminating side-effects. The L-Arginine in the cream penetrates the skin of the vulva and increases the amount of nitric oxide which increases c-GMP leading to the same results as Viagra™. However, it has some advantages:

1. It usually works within a few minutes, leading to greater spontaneity. Duration of effects is variable among women, ranging from 15 minutes to hours.

2. It has no side-effects.

3. Because the actions are confined to the genitals, it can be used by patients with heart problems who are taking nitrates.