Skin Adjusts Quickly: Retin A (tretinoin) is a medication used to control acne and to refine aging skin. As a controller medicine, this means it is used long term. It has a very good track record. It works by several methods, but in brief, by renewing the surface of the skin. When first starting, some may notice slight peeling. This is why the lowest dose, 0.025% is used to start. Later the strength can be increased.
Answered 11/2/2015
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