There are many medications available to treat acne in the market, one of which is benzoyl peroxide. What are the benefits and side effects of this acne treatment?
What is Benzoyl Peroxide?
Benzoyl peroxide is an active ingredient in many acne treatments. Benzoyl peroxide comes in a variety of forms, including gels, creams, lotions, and facial cleansers.
It is typically available at concentrations of 2.5%, 5%, and 10%. Lower concentrations are generally recommended for people with sensitive skin or those who are new to using these products.
How does Benzoyl Peroxide work?
After cleansing the face, apply a thin layer of benzoyl peroxide to the acne-prone skin. It is recommended to use it once or twice per day, depending on your skin condition and the product instructions. Benzoyl peroxide uses several mechanisms to treat acne, including:
As an antibacterial agent
Benzoyl peroxide is effective at killing the Propionibacterium acnes (P. acnes) bacteria, one of the primary causes of acne. Reducing the number of these bacteria can help to reduce inflammation and acne formation.
Keratolytic action
Benzoyl peroxide is keratolytic, meaning it can help accelerate the turnover of the upper skin layer. This helps to unclog pores filled with dead skin cells and sebum, reducing the appearance of blackheads and pimples.
Reduces excess oil
Benzoyl peroxide helps to reduce excessive oil production in the skin. Excess oil can clog pores and worsen acne. Reducing oil (sebum) production can help maintain clear skin.
Reduces inflammation
By reducing the number of P. acnes bacteria, benzoyl peroxide helps to reduce inflammation. Pimples that are not inflamed become smaller and less red.
Prevents blackhead formation
Benzoyl peroxide's exfoliating and antibacterial properties help to prevent the formation of new blackheads. This is crucial for long-term acne management and prevention.
Side effects of Benzoyl Peroxide
Benzoyl peroxide can cause some common skin reactions, including:
- Dry and peeling skin
- Mild itching and irritation
- Redness especially if you have sensitive skin
Serious side effects of benzoyl peroxide are extremely rare, but if you notice swelling or blisters on the skin, stop using it immediately.
Very rarely, serious allergic reactions (anaphylaxis) to benzoyl peroxide have been reported. If you develop a rash, swelling, and itching, particularly on your face, tongue, or throat, along with severe dizziness and difficulty breathing, seek emergency care at your nearest hospital or health facility right away.
Benzoyl peroxide may also interact with other medications, including adapalene, isotretinoin, salicylic acid, topical antibiotics, and retinoids. Inform your doctor if you are taking any of these medications or herbal remedies.
Have other questions related to acne or acne medication problems? You can make use of the consultation features that are available in the Ai Care application by downloading the Ai Care application from the App Store or Play Store.
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- Sean Edbert Lim, MBBS
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