How does benzoyl peroxide work?
Benzoyl peroxide kills acne-causing bacteria, reduces oil production, and removes dead skin cells, preventing clogged pores and breakouts.
What is benzoyl peroxide used to treat?
Benzoyl peroxide is commonly used for:
- Acne (mild to moderate cases)
- Blackheads and whiteheads
- Inflammatory pimples
- Reducing oiliness and bacteria on the skin
Who can use benzoyl peroxide?
Benzoyl peroxide is suitable for most adults and teenagers with acne, but those with sensitive skin should use it cautiously.
Who might not be able to use benzoyl peroxide?
Benzoyl peroxide may not be suitable if you:
- Have very sensitive or dry skin
- Have had a severe allergic reaction to benzoyl peroxide or similar acne treatments
- Are using other strong acne medications (such as tretinoin or isotretinoin)
Can I use benzoyl peroxide if I’m pregnant or breastfeeding?
Benzoyl peroxide is generally considered safe during pregnancy and breastfeeding, but always check with your doctor before use.
What if I miss a dose?
If you forget to apply benzoyl peroxide, use it as soon as you remember. If it’s close to your next application, skip the missed one—do not apply extra to make up for it.
How effective is benzoyl peroxide?
Benzoyl peroxide is highly effective for acne when used regularly, but it may take 4 to 6 weeks to see full results.
What should I do if I use too much?
Using too much benzoyl peroxide can cause skin irritation, dryness, and peeling. If irritation occurs, reduce usage or apply a moisturiser. If severe irritation develops, stop using it and seek medical advice.
What strength of benzoyl peroxide is usually used?
- Mild acne: 2.5% to 5% once daily
- Moderate acne: 5% to 10% once or twice daily
- Severe acne: Higher strengths may be prescribed alongside other treatments
Your doctor or pharmacist will determine the right strength for you.
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What are the side effects of benzoyl peroxide?
Common side effects include:
- Dry or peeling skin
- Mild redness or irritation
- Skin sensitivity to sunlight
- Bleaching of fabrics or hair (avoid contact with clothing and hair)
- Serious side effects, such as severe allergic reactions, are rare but require immediate medical attention.
How should I use benzoyl peroxide?
Benzoyl peroxide is applied thinly to affected areas, usually once or twice daily. It should be used on clean, dry skin.
When should benzoyl peroxide be used?
Benzoyl peroxide is best applied in the evening to reduce sun sensitivity. If using during the day, apply sunscreen.
What are the brand names for benzoyl peroxide?
Benzoyl peroxide is available as a generic medicine, but some branded versions include:
- Acnecide
- Benzac
- PanOxyl
Final thoughts
Benzoyl peroxide is an effective acne treatment but requires consistent use. To avoid irritation, start with a lower strength and use a gentle moisturiser. If side effects occur, speak to your doctor or pharmacist.
