Thanks to Coyote Zenterprises www.silverpuppy.com for this great like to an EPA page on silver and argyria. Important to note, none of the studies involved pure colloidal silver. All studied silver compounds...a very important fact.
http://www.epa.gov/iris/subst/0099.htm#I.A. Cheers, Steven Geigle Cedar Mill, Oregon, USA sgei...@home.com
