I went to a website about it. They don't tell you what the stuff actually is. They claim it lowers blood mercury levels, but how does it do so? It might be necessary for the mercury to be in the bloodstream for it to be excreted. Perhaps lower blood mercury levels might mean less mercury is being excreted? Sorry for being skeptical, however I would want to know what something is, and get an idea of how it works before even thinking about trying it.