There is a mechanism by which the colloidal silver fights against the harmful pathogens. In the mechanism, the Colloidal water that simply looks like the silver water immobilizes the metabolic pathways lined up with oxygen. By this, the dangerous microorganisms are made to be famished of the major source of producing the energy that is the oxygen. So, when the organisms would not have proper amount of oxygen, then those organisms would ultimately die of suffocation and ultimately are removed from the body through some pathways. Hence, the colloidal silver is of very much use in fighting against these deadly single cell organisms.