well i must say it removed about 35% of the SH but it did however come back. BUT WAIT...............it's very hard for her to get 'regular' treatments so I can't be sure about the results If they were done on a regular basis the end result may be different. I do understand that this is a Rx condition that usually goes w/o a 'cure' type treatment. I am curently retesting  her with (dermaquest) TCa & MOD Jessners & their new Skin Bright Peel. I will try to remember to  keep u posted on the progress!