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Regular Contributor
Posts: 174
Registered: ‎10-23-2010

Someone posted about their derm perscribing benzoyl peroxide with retin a

I can't remember the name of the thread, but I do remember people commenting that the derm didn't sound right for doing this. I specifically remember someone saying that the use of the BP would counteract the effectiveness of the retin a. I just found this info., which may explain it better.

Benzoyl peroxide. Benzoyl peroxide is not typically thought of as an antibiotic, but it can help to inhibit the growth of the P. acnes bacteria. Studies have also shown that benzoyl peroxide can increase the effectiveness of other acne medicines and reduces the likelihood of developing antibiotic resistance. However, benzoyl peroxide does not have anti-inflammatory effects. Benzoyl peroxide formulations included lotions, gels and washes. It may be prescribed for use alone or in combination with a topical retinoid.