Colloidal silver is a powerful, natural antiviral, anti-fungal and antibiotic. Acting as a catalyst, it disables the enzyme that one-celled bacteria, viruses and fungi need for their oxygen metabolism. The silver suffocates the germs without any harm to body chemistry. Unlike pharmaceutical antibiotics, which destroy beneficial enzymes, colloidal silver leaves these tissue-cell enzymes intact, as they are radically different from the enzymes of primitive single-celled life. Thus colloidal silver is absolutely safe for humans, reptiles, plants and all multi-celled living matter.