Benzoyl Peroxide gel (generic Acnecide)

After washing the affected area with warm water and a mild cleanser, apply a thin layer of the gel each evening, or twice a day if you have been advised to do so.

Acne is often caused by a build-up of oil in the pores causing the pores to become blocked. Benzoyl Peroxide gel (often branded Acnecide) helps to reduce the production of this oil and works by breaking down keratin in the skin structure. This in turn breaks down blackheads and whiteheads, unblocking acne-causing pores and shedding dead cells from the skin surface.

Benzoyl Peroxide gel also works by killing the bacteria that cause acne, so it can therefore help prevent future acne flare ups and reduce inflammation to the affected area.

It can sometimes take up to 4 weeks to see an improvement in your skin, so it is important to continue the treatment and monitor your progress. Trying the acne treatment for 12 weeks will help you to determine if it has made a real difference to your acne.

As the gel can dry out the affected area, if you have sensitive skin it may be best to apply the gel only at night. It may also be worth altering the number of times you apply to once every other day until your skin adjusts.

Like many medications some patients may experience side effects with Benzoyl Peroxide gel. The most common side effects are a mild burning sensation, dryness, redness and peeling of the treated areas of skin. It is also worth noting the gel may also bleach the hair (as well as towels and bed linen).

The treatment is also likely to increase sensitivity to sunlight, sunbeds or sunlamps, it is important to use a suitable factor sunscreen. 

For full information on side effects and correct use, see the patient information leaflet.