I used Acne Free starting a few years ago to help reduce the occasional pimple, but mainly to get rid of blackheads and dull skin. The set worked great, and I saw much clearer looking skin within a week. After using it for about a month I felt like my skin could not have looked any better. While I did use sunscreen as per the directions, I did not experience any sensitivity. Also, I felt completely comfortable using the set long term because I did not have any trouble at all applying makeup over it. I used the gel each night on my nose and anywhere I thought I might be getting a pimple. I also used the kit on the backs of my arms and my upper chest, where I sometimes break out, especially in hot weather. I am 30 now, but still have to take care not to get blackheads and dull skin, even pimples sometimes, so this product is great for me because it is not too harsh but gets the job done.