The first time I use Dark spot magic eraser I started to see a difference in my dark spot very slight(my dark spots, very stubborn, and Iāve been dealing with this issue for all my life) I have very sensitive skin, and I must say I can use this magic eraser without any irritation, which is a game changer for me. I will be sticking with. as long as it continue to work, Iām at this time, trying to look at some of your other products, such as the patches to help with the process, moving forward.