You can read the post I started below for the technical information Tom (of Silver Puppy) sent me on a OTC brand called "Future Biotics Advanced Colloidal Silver ". Very many OTC brands are not real CS but Mild Silver Peotein. Manufactuers don't make this. They buy it very inexpensively from labs. It isn't effective as sold. They will claim to be 10ppm. They do not mention that they are actually mild silver protein. They are 1/50 as strong as Colloidal Silver .
I had written him regarding the taste of my CS. You can read the post below if you would like to know about the taste. It appears that many people are being fooled by the mild silver protein. As in the ad link in the post under this group, it even clearly states it is mild silver protein, but no one knows what that is. So they claim it is 5000 ppn Ha! and will save you from avian flu. It makes me sick to see supposedly "alternative health care" advocates trying to dupe the public like this.