I had several Obagi Blue Peels done over the past five years. The results have been better than lasering I had done. It does hurt during and after the treatment.It is not for a person that can not stand pain. It did take about two weeks to heal. The results depend on the strength used and the person doing the treatment.For sundamaged skin it is recommended to have several done over a peroid of time. that is what I have been doing.