Colloidal silver

Colloidal silver is silver in very fine particles, suspended in water. It can be prepared by any of several methods:

• Electrical method: Pass 30 volts through two silver electrodes in pure water for a few hours. Put a small light bulb in the circuit. If the bulb lights, a whisker of silver has connected the electrodes and you have to stir the water.
• others

It has been claimed to kill various microorganisms. Continued ingestion of colloidal silver may result in argyria.