Just read an article in my local paper advertising Platinum foot spas. It looked to be the exact same idea as the detox foot patches. It explained the idea of the water drawing toxins out of the system and the water turning a black color. They were listed at 30 English pounds per session and said you should preferably have six sessions, the sixth one being free. A bit on the pricey side I suppose, compared with the patches. But then a cure for EP - priceless!