Silver has been used for its purifying and preservative properties by many cultures throughout history. The Greeks used silver vessels to keep water and other liquids fresh. In the late 1800's and early 1900's silver was used for its germicidal properties. Today, silver is popular among alternative medicine enthusiasts because of many positive personal reports and some impressive research results.

RBC's Silver 22 is nanoscale in size, is prepared by a unique, patented process and is suspended in colloidal form in purified water. It has undergone extensive safety testing. RBC scientists believe that the dose of 22 parts per million is the most effective level of silver for regular or periodic use. It may be used as a liquid or a spray.