Thanks for the link Pic. I've been buying bottles for about 6 months to try on myself. Don't know what took me so long to even try colloidal silver, but I'm going to buy that generator to save a bundle.
Six months isn't a long time for a true test, however, I haven't had any illness while flu and colds have run through my wife and two daughters. It was definitely enough time for me to experience the benefits IMO.
Yes, buying by the bottle is expensive.
Terry