Silver has been known for its medicinal and antimicrobial properties for thousands of years. Prior to 1938 colloidal silver was the principle antibiotic treatment in the United States. As modern antibiotics are losing their effectiveness against quickly adapting resistant bacteria, many researchers are turning back to this natural antibiotic, which has been known to kill bacteria, virus, fungus and more, and all without side effects. Colloidal Silver is one of our most popular products. It comes with a convenient spray top so it can be taken bei sprayed into mouth.