I've been using these on a few dark spots on my face. I've only been using them for about 2 weeks so there hasn't been any fading of the spots but during this time I got a great big pimple and I used these patches on it and it cleared up in 2 days. It was a nice barrier to help keep the pimple from getting infected and worse and kept me from touching and adding to the healing time. Also I was able to put foundation on with out clogging up the pimple. I do have to say these are really transparent and the quality is so good I forget I have them on until I see just a small part of the edge curl up. The size of the patches are perfect, not too small or too big. There is a small blue tab that I use to smooth out the patch. Great value for good quality pimple patches.