"i had been using products that contained benzoyl peroxide to control my acne.  when i heard that the fda had approved adapalene for over-the-counter sales i said that i should give it a try - it used to be a prescription drug so it must be good.  wrong!  i used differin for over two weeks and all of the while my acne got continuously worse.  so, i went back to benzoyl peroxide."