I am anxious to try them. The man I spoke to on the phone stated you can send the used pads in for examination and will let you know what you are detoxing. I am curious about that. I grew up in a heavily industrialized area that was famous for petroleum manufacturing. I have passed cobalt colored bile in the past so I figure I am full of metals and toxic material in my liver and the such. I will Let you know how they work and if I send them in what the analysis is of detoxed material.