How long does benzoyl peroxide take to work?

How long does benzoyl peroxide take to clear acne?

The first improvement is not the same as complete clearance: there is no fixed week when every spot should disappear. Benzoyl peroxide reduces bacteria on the skin and helps with spots and blocked pores, including blackheads and whiteheads. It is used for mild to moderate acne and is also part of some prescription combinations. Benzoyl peroxide is an established acne treatment, not a novelty recruited to give a bottle something to brag about.124

When should I expect results from benzoyl peroxide?

Treat the early weeks as a period of regular use, not a daily pass or fail test. Dryness, peeling, warmth or slight stinging can occur before the acne improves. These are side effects, not a measure of how well treatment is working. Using extra product will not speed results and increases the risk of side effects. Mild irritation often improves after a few days or with less frequent use; ask a pharmacist or doctor about symptoms that persist or bother you.12

How often should I use benzoyl peroxide?

Start with the lowest available strength and once daily, following your package or prescription. Usual use is once or twice daily. If irritation is a problem, starting on alternate days or with a short contact application can help. Some prescription combinations are used once each evening; follow their own directions rather than a schedule for benzoyl peroxide alone.123

1. 1Before first use, apply a small amount to one or two small treatment areas for 3 days. If there is no reaction or discomfort, proceed as directed.
2. 2For a gel left on the skin, wash your hands, gently clean and dry the affected skin, then apply a thin layer.
3. 3For a gel wash, wet the affected area, wash with a small amount for 1 to 2 minutes, then rinse and pat dry.
4. 4Wash your hands afterwards. Keep the product away from eyes and mouth, and avoid cuts, grazes or infected skin.

Keep cleansing gentle and avoid harsh exfoliation. Different acne treatments can work together, rather than making one tube chair every committee. However, add other acne medicines only with a doctor or pharmacist's approval, because combinations can increase dryness and irritation. Use sunscreen and protect hair and fabrics from bleaching. If you miss a dose, skip it when the next is nearly due; do not double up.1235

How long should I use benzoyl peroxide before deciding if it works?

If there is no improvement after 4 to 6 weeks, contact your doctor for advice rather than increasing the amount yourself. A full acne treatment review commonly happens at 12 weeks. Seek help earlier for worsening acne, deep painful spots, scarring or an effect on your mental health. Keep the product away from excess heat and follow storage instructions; replace benzoyl peroxide products every 10 to 12 weeks.2346

When should I stop or check before using it?

Get urgent medical advice for burning, blistering, swelling or a rash. Stop using benzoyl peroxide and seek emergency help for throat tightness, breathing difficulty, faintness or swelling of the face, lips or tongue. Check with a doctor before use in children under 12. Benzoyl peroxide alone can usually be used during pregnancy, but check first; combinations containing adapalene are not suitable. During breastfeeding, check with a pharmacist or doctor and avoid applying it to the breasts.123