Takes time.: Retinoids like Retin-A cosmetically enhance by stimulating skin turnover and promoting new collagen to form/build. However, it takes several months to see the results of the collagen stimulation as the incubation for collagen is approximately 4 months. In the interim, make sure you moisturizing well to avoid the possible irritating side effects of a retinoid.
Answered 11/8/2014
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