CLAIM: Benzoyl Peroxide is effective for acne, particularly inflammatory acne.FACT: Benzoyl Peroxide should only be used under a dermatologist’s guidance, as improper use or concentration may ...

You should also patch test the product prior to use, to ensure no allergic reaction takes place. "Benzoyl peroxide is found in concentrations between 2.5 per cent and 10 per cent,” explains Begoun.