anyone try kinoki detox foot pads? i heard about these and seemed like a good idea, but also seemed like snake oil. so i looked it up on google and they had a big forum where people discussed it. I read most of the posts, and some had me convinced that it could work, or worked. and Most had me convinced that it was a sham, and that the pads reacted to something in your sweat and that's what made it turn colors.