I read an article about that Smurf man that claims the same things Kfilly just mentioned. The guy was making it way to stout and took huge doses. I've never made colloidal silver but I do have several bottles of it. I believe the stuff works but I only use it for colds and flu. What really made a believer out of me was when we got one of our drop-off pups the poor thing had Parvo. After researching treatments for it I found that colloidal silver was the #1 success rate for home remedies. Well I had some and gave the puppy 10ppm solution with pedialyte. It worked very fast and the vet confirmed it.