Your search for "colloidal silver" revealed the following:

MesoSilver contains highest particle surface area than any other silver product on the market. This small particle size means one...
$52.87
Advanced Cellular Silver (Elemental) 200 parts per million (PPM) 99.99% pure silver colloid solution for immune support. This unique formula...
$29.99
Argentyn 23 Professional Bio-Active Silver Hydrosol contains only 99.999% pure silver and purified water meeting USP NF standards for pharmaceutical-grade...
$55.99
Argentyn 23 does not use additives or stabilizers, nor does it contain salts or proteins (often used to keep silver...
$93.99