I use CureZone sponsor Utopia Silver's Advanced Colloidal Silver. Much as I generally like Wellness Resources supplements, I am not excited at all about their silver solution. It is almost entirely ionic silver which is artificially suspended due to the addition of protein to the solution. Also, they say that their particles average 0.002 microns. That may be pretty small, but it is nevertheless an average of 20 nanometers, which hardly compares with the 0.65 nanometer size particles in the best true colloidal silver products. Not saying that the product won't work, mind you. MOST silver products work. Just not all work as well as others, especially not as well as the very best ones.