Although classified legally as a supplement,
that's not really what colloidal silver is used for.
Those of us using it are doing so for various medical
conditions, particularly infections from virus, bacteria or
fungus. My own particular experience with it has been
very effective against skin fungi, particularly tinea
cruris (jock itch) and a fungus on my hands. It has also
been very effective for me against body-odor causing
bacteria, and dental plaque bacteria. Now that I am not
having any of those problems, I am not ingesting it,
merely swishing it in my mouth and spitting it out to
work on dental plaque. I recently successfully fought
off a really mean cold with it and H2O2.