Differences between Contragel and a regular spermicide : When we talk of a regular spermicide we are talking about an nonoxynol-9 based products such as gygel where nonoxynol-9 is the an active ingredient and micro b side which breaks down the sounds of the sperm but unfortunately it also breaks down the souls of the skin. It cannot distinguish between the two and so both the ma... https://www.homehealthcareshoppe.com/contragel-gel-green