Nonoxynol-9+(N9)

organic compound, used in various cosmetics and cleaning supplies, used in contraceptives as spermicides

As a [|spermicide], it attacks the [|acrosomal] membranes of the [|sperm] , causing the sperm to be immobilized. Nonoxynol-9 is the active ingredient in most spermicidal creams, jellies, foams, gel, film, and [|suppositories].

Nonoxynol-9 is sometimes included in shaving creams for its properties as a nonionic surfactant; it helps break down skin oils that normally protect hair from moisture, so that they become wet and, hence, softer and easier to shave. Gillette formerly used nonoxynol-9 for this purpose in its Foamy products, but has discontinued the practice.
 * Shaving Cream:**

Almost all brands of diaphragm jelly contain nonoxynol-9 as the active ingredient. This jelly may also be used for a cervical cap. Most contraceptive sponges contain nonoxynol-9 as an active ingredient.
 * Cervical Barriers:**

Nonoxynol-9 is also found in Bengay Vanishing Scent as an inactive ingredient.
 * Sports cream:**

Nonoxynol-9 is also found in Zanfel poison ivy cream. It effectively helps to break up the oil urushiol that causes the rash.
 * Poison ivy creams:**