It has been working so far for me, used it on my core blacks since i wear them all the time, I ve done it maybe 4 times and the yellow is almost gone. I let it sit under the light for a little over an hour each time I do it, and they look better each time I do it. Im hoping maybe two more...
I have been using the method people were/are using on icey sole jordans and foams(using sole cleaner I have some left over "fabes sole" and then letting the shoe sit under a UV light). So far it has worked pretty good at getting the yellow out. Wish I had some before/after shots but I didnt...