Headliners you have to be very carfeul when working to remove stains from them. TO much solution you can have a instant headliner that droops or one that will start to fall down soon!! They sell checmicals especially made for headliner cleaning or you can use some of your all purpose interior clean stuff and put it on a towl!!! Do not squrt products onto headliner this may result in the adheasive coming loose. Then just lightly rub with a terry cloth and ull be good!