@ GOLD, I have to look for the source on their manufacturing site. Off the top of my head I want to lean toward South Korea as one site, but don't quote me on that.
Do I trust RPC? I am not 100% sure if I do. I am well aware that they have to make themselves look as good as possible. However, I do think their test has the potential to make good money with the right PR and the potentially good Mayo clinic results.