This colloidal silver is 500 parts per million, a pharmaceutical grade.
 It is safe and effective. It can be used on humans of all ages, pets  and farm animals. 
At 0.002 micron size. This collateral silver is 99.9% silver. It has been field tested for years by our supplier. With no negative reports, only success stories.
 Adult dose: 1/2 teaspoon in any liquid; once daily.
For severe infections it can be taken 2 to 3 times a-day for short periods.