Although there have been both claims that colloidal silver is simply a placebo at best, others hail its value as an antibiotic that supports the human immune system. A theory as to how colloidal silver acts as an antibiotic: The action of the silver particles seems to disable the enzymes in bacteria and even viruses, thus killing disease-causing organisms in the body.
Silver acts as an antibiotic by effectively killing harmful pathogens. A study performed by the University of North Texas showed that colloidal silver (in vitro) effectively kills common disease causing pathogens. The interest in colloidal silver as a natural antibiotic is resurfacing both because of the rapidly increasing interest in natural health products and more importantly, because of the potentially dangerous advent of Multiple Drug Resistant (MDR) pathogens— microorganisms that are developing resistant to many antibiotics.*
