Bunk. There are several resources that I could point to about this but here's one from Dr. Andrew Weil. He's an integrative medicine practitioner and generally open to unusual and alternative medicine ideas. He says don't waste your money.So are foot baths for detoxifying the body bunk also? I've had several people recommend them, but never have tried it. It does seem odd to me to be able to pull toxins out through you skin.
http://www.drweil.com/drw/u/id/QAA400147
Peace,
Karen