Was about to order Colloidal silver recommended by Dr Caroline Dean, when I read about the dangers of silver consumption (and I don't mean in the financial investment sense) - http://www.rosemaryjacobs.com/rose1.html http://www.rosemaryjacobs.com/argyria_photos_intro.html No can do. I've already encountered 2 other health supplements that nearly did me in. Not taking a chance with this one. Again, I have no experience, and can proclaim myself a chicken coward in many things, so I am not the best person to follow. However, in case this rosemaryjacobs outcome is not a one-off case, I'd not want it to happen to any T sufferer as T is already punishing enough without piling more on its plate. In doubt, just don't consume colloidal silver. I just wish to bring reminder to the other side of health supplements.