Does ContraGel Kill Sperm?
ContraGel does not kill sperm on contact. It doesn’t need to. One of the properties of a spermicidal gel is that it’s a gel, a sticky substance which sperm simply can not travel through. It’s a barrier to capture and retain the sperm. A diaphragm or cervical cap can not form an absolute seal on their own so a gel substance is needed to complete the physical barrier. For this reason the chemical content of the barrier is not so important. Contragel however uses a base of Lactic Acid, yes just like natural lemons which originates from natural fruit trees. The pH value of lemon is very low and this in turn reduces the pH of the sperm, inhibiting their activity.
