I think MJ had Chemically Induced Vitiligo. It can be done but there are so many issues involved with the process, you will end up patchy for months or years. Is that something you can live with? Even MJ with all his money he could not get it done fast, it is very slow producers. Some people get better results than others, the are not a lot of research around the subject. You can not decide where to lighten, I am using mono, I never apply to my back but those areas are getting white spots.