Colloidal silver is a controversial alternative medicine. Advocates claim it may be used to treat a variety of acute and chronic conditions, but there’s no scientific evidence to support these claims.

Q. I have seen colloidal silver for sale in health-food shops. What is it used for and is it safe or is it a scam? Naturopath's response... Natural therapies are not immune to fads and fashions.

Colloidal silver is a suspension of tiny particles of silver in a liquid, or sometimes gel. The particles are so small that they can’t be filtered out of the solution; these nanoparticles range from ...