Retin-A (Tretinoin) is not a cosmetic product. It should only be used with care, under medical supervision as an adjunct to a comprehensive skin care and sun avoidance programs; that include the use of sunscreens and protective clothing, when improvement of fine wrinkles, sun/age spots and skin treatment are desired. As long as you are using Retin-A, you will need to be checked by your doctor. This is a prescription medication and patients using it need to be monitored, just as they need to be for any prescription drug.