What is science behind Retin-A for acne?
4 months ago
I understand that it doesn't kill acne-causing bacteria. How does it alter the skin's response to acne? Thanks
Doctor Answers 1
How does Retin-A help acne?
Retin-A (tretinoin) helps with acne by thinning the surface layer of the skin (the epidermis). A thinner epidermis means less trapping of sebum (thick material in pores), so fewer breakouts.
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