My brother swears by Colloidal Silver. He makes his own Colloidal Silver Solution and drinks it everyday, or so he says. Of course he is often mistaken for an alien because it gives him a gray complexion. (Just Kidding. Only if you overdose on it will the gray show up on your skin.)
12 volt car battery will make good colloidal silver. Pure silver wire can be bought on ebay from a reliable supplier that I know. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=494&item=4951158874&rd=1&ssPageName=WDVW