Hi Jimmy,
No I haven't but I have heard about a similar thing, a footbath. Apparently it has a similar effect to the pads but you see the toxins coming out in the water in just half an hour. I want to try this too, as I have started my detox pads and they are still black after four days! I am obviously in need of them ;)
Anyone know how long it takes for them to clear a little the first time round?