I had a total of 5 IPL photofacials 3 with one lady and at the first place I went and 1 with another lady there. I didn't get any results with the first 3 treatments but with the last one I finally saw some results. It all depends on the esthetician that you use. The last one at the first place was great and did her job well. I have never seen any adverse effects from it. The second place I went to did not do as good a job.. I told the woman that high settings were required to see results with my skin type but she didn't listen and I have seen very minimal results. I do plan to try again for a few of my spots since when it is done right the color will lift.