The active ingredient benzoyl peroxide has been extensively studied and considered the most effective non-prescription antibacterial treatment for blemishes and acnes. It is the exact active ingredient used in the popular brand Proactive. The difference is that in Proactive, the concentration is 2.5% which is considered effective and low-irritation, Clearasil used 10% of this ingredient, the highest concentration allowed without prescription. Higher concentration may be more effective, but also less tolerated. It is suggested to start the use of benzoyl peroxide at a lower concentration such as 2.5% and build the tolerance. Subsequently increasing concentration may yield better acne-control result.
Users who have never been exposed to benzoyl peroxide have a high possibility to develop contact sensitization to this product due to the high concentration. Only use it as a spot treatment. Cease if adverse effect appears.
Benzoyl peroxide functions as an anti-bacterial agent that penetrates into the follicle where the acne-causing bacteria reside and eliminate them.
Safety alert: Elevated
review based on scientific information of the product ingredients.
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