If you’ve struggled with acne, chances are, you’ve come across benzoyl peroxide. It’s been used for decades to treat acne, and with good reason – it’s inexpensive, readily available, and it works!
How does it work?
Benzoyl peroxide is antiseptic, meaning it reduces the amount of bacteria on the skin without causing resistance. It’s keratolytic and comedolytic, meaning it gently exfoliates the top layer of skin and removes dead skin cells, and unblocks pores. It also reduces inflammation in the skin.
Why should I use it?
Benzoyl peroxide is a great place to start for mild to moderate acne, and can be easily sourced from pharmacies without a prescription.
What should I look for in a product?
Benzoyl peroxide is available as a cleanser, gel or cream, in concentrations between 2.5 – 10%. Some studies suggest that the 2.5% concentration is as effective as higher concentrations, with less irritation. If you have sensitive skin, start with 2.5% and slowly increase the strength if you’re tolerating it. For chest and back acne, a cleanser containing 5 – 10% benzoyl peroxide is a good choice.
How do I use it?
For creams or gels, start with a low concentration, used once daily, usually at night. If you have sensitive skin, start just twice weekly and slowly increase use. A cleanser with 5 – 10% benzoyl peroxide is a good choice for back and chest acne, left on for 90 seconds before rinsing.
Potential drawbacks
Benzoyl peroxide can cause dryness, irritation, bleaching of fabric and hair, and rarely allergy. If you’re developing irritation, make sure you’re using a low concentration, use it less often, and moisturise regularly.
