• Kills acne-causing bacteria to reduce breakouts
  • Unclogs pores by clearing excess oil and dead skin cells
  • Reduces redness, swelling, and helps spots heal faster

How it works?

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Overview

Breakouts can feel like they appear overnight — but Acnecide gets to work fast. This clinically proven gel targets the root cause of acne by reducing bacteria, clearing blocked pores, and calming inflammation. Used daily, it helps prevent new spots from forming while gently improving skin clarity.

Simple, effective, and dermatologist-trusted, Acnecide is a go-to treatment for mild to moderate acne. It’s a step towards clearer skin and renewed confidence.

This medicine requires a secure online consultation with a UK-registered prescriber, and will only be supplied if clinically appropriate.

 

What is Acnecide


Acnecide is a topical treatment that contains benzoyl peroxide, one of the most effective and well-established ingredients for managing acne. It tackles acne at its source by killing the bacteria that contribute to inflammation and breakouts. In addition to its antibacterial action, Acnecide also helps to unclog blocked pores by removing excess oil (sebum) and dead skin cells, two key contributors to spot formation. By addressing both the bacterial and structural causes of acne, it reduces redness, swelling, and the size of active blemishes. Acnecide is suitable for mild to moderate acne and is often used as a first-line treatment on its own or alongside other prescription medications for more stubborn or widespread acne.

Directions

  • Apply a thin layer to the affected area once or twice daily, as directed by your prescriber.
  • Wash your face with a gentle cleanser and pat dry before applying.
  • Avoid contact with eyes, mouth, and broken skin.
  • Use sunscreen during the day, as benzoyl peroxide can increase sensitivity to sunlight.


Improvement is usually seen within 4–6 weeks, but consistent use is key.

Side Effects

Most people tolerate Acnecide (benzoyl peroxide) well, but some may experience mild skin reactions — particularly when first starting treatment. These effects usually improve as the skin adjusts.

Common (may affect up to 1 in 10 people):

  • Dryness or flaking of the skin
  • Redness or mild irritation at the application site
  • Peeling or scaling
  • Mild burning or itching sensation


Less common (may affect up to 1 in 100 people):

  • Persistent skin irritation that does not improve with continued use
  • Temporary bleaching of hair, clothing, or fabrics if the gel comes into contact with them


Most side effects are temporary and settle with regular use. If irritation is severe or persistent, reduce the frequency of application or speak to your prescriber.

Disclaimer: This is not a complete list of side effects. Always read the patient information leaflet provided with your medicine for full details. If you experience anything unusual or concerning, stop using the treatment and seek medical advice promptly. In an emergency, call 999 or go to A&E.

Warnings

Acnecide may not be suitable if you:

  • Have very sensitive or eczema-prone skin
  • Are using other strong acne products (unless advised by a prescriber)


Avoid contact with clothes, towels, and bedding, as the gel can bleach fabrics.

Frequently asked questions

  • What is Acnecide and how does it work?

    Acnecide contains benzoyl peroxide, which reduces acne by killing bacteria, unclogging pores and calming inflammation. It works on both surface spots and deeper breakouts, making it a good first-line treatment. It is often used before or alongside prescription options.

  • How long does Acnecide take to work?

    Acnecide usually starts improving inflammation within a few weeks, but the full benefit may take six to eight weeks. Consistent daily use is key to reducing breakouts and preventing new ones. If acne is persistent or painful, a clinician can advise whether prescription treatment is needed.

  • How do I apply Acnecide correctly?

    Apply a thin layer once daily to clean, dry skin, gradually increasing to twice daily if tolerated. Using too much increases irritation without improving results. Start slowly to help your skin adjust and avoid applying it near the eyes or mouth.

  • What side effects can Acnecide cause?

    Acnecide can cause dryness, redness, peeling or mild burning, especially in the first few weeks. These effects normally improve as your skin adapts. If irritation becomes severe or persistent, reducing frequency or adjusting your routine can help. Seek advice if symptoms are significant.

  • Who should not use Acnecide?

    Acnecide may not be suitable if you have very sensitive skin, eczema or allergies to benzoyl peroxide. Avoid using it on broken skin. A clinician can advise alternative treatments if your skin reacts strongly or if you have deeper, cystic acne.

  • Can Acnecide be used with other acne treatments?

    Yes, Acnecide is often used with prescription treatments such as adapalene, Duac or Treclin. A clinician may advise alternating products to reduce irritation. Benzoyl peroxide also helps reduce resistance when used alongside antibiotic treatments.

  • Can I buy Acnecide online in the UK?

    Yes. Acnecide is available from UK-registered pharmacies without a prescription. Buying from a regulated provider ensures you receive the correct strength and clear instructions on how to use it safely.

  • Is Acnecide strong enough for moderate or hormonal acne?

    Acnecide can help with mild to moderate acne, but deeper or hormonal breakouts often respond better to combination treatments or prescription medicines. If acne is painful or persistent, a clinician may recommend options such as adapalene or oral antibiotics alongside Acnecide.

  • Does Acnecide help with blackheads and whiteheads?

    Yes. Benzoyl peroxide helps clear blocked pores and reduce the bacteria that contribute to blackheads and whiteheads. For stubborn congestion, a clinician may suggest combining Acnecide with a retinoid like adapalene for stronger pore-clearing effects.

  • What should I do if Acnecide makes my skin very dry or irritated?

    If your skin becomes sore or flaky, reduce how often you use Acnecide or apply a gentle moisturiser after it has dried. Most irritation improves within a couple of weeks. If it continues, a clinician can recommend alternative treatments or adjust your routine.

  • Can I use Acnecide alongside makeup or skincare products?

    Yes, but choose non-comedogenic products and allow Acnecide to dry fully before applying anything else. Some foundations or moisturisers may increase irritation, so introduce products slowly and avoid heavy exfoliators.

  • How long should I keep using Acnecide for best results?

    Many people use Acnecide for several months to keep pores clear and reduce inflammation. It can be continued long term if tolerated, though prescription options may be more effective for deeper or hormonal acne. A clinician can advise the best plan for your skin.

  • Does Acnecide bleach fabric, hair or towels?

    Yes. Benzoyl peroxide can bleach clothing, towels, pillowcases and hair if not fully dry before contact. Let the gel absorb fully and wash your hands carefully after applying it. This prevents accidental discolouration.

  • What if Acnecide doesn’t improve my acne?

    If there’s little improvement after several weeks, a clinician may recommend stronger treatments such as Duac, Treclin, adapalene or oral antibiotics. Each works differently, so switching or combining treatments often leads to better results.