“It’s a prescription because of the strength and the need for someone with more expertise to guide ... to tretinoin that you can get without a prescription, it’s Differin Gel.
Benzoyl peroxide can counteract with tretinoin, if used concurrently. Tretinoin gel microsphere (Retin-A Micro ®) 0.1%, however, offers marked protection against tretinoin photo degradation ...
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