I agree. That's the bottom line to me, too. I searched this site hoping to find someone who knows something about pure horizon products. IOPlus is so much less expensive than Iodine Plus2, I wondered if it was "for real." Now that I know there's a good doctor recommending it, I'm going to try it. Thanks everyone for this discussion. It is helpful to me. I've ordered two bottles, one for me & one for my son who I am hoping will be willing to take it.