What Silver Products Cause Argyria?
The US Federal Register listed the silver products that cause argyria as silver salts, including silver nitrate, silver arsphenamine, silver chloride and possibly silver iodide. These products were sold until about 1975 under various labels consisting of silver solutions ranging from 5-30% silver [50,000-300,000 ppm (parts per million) of silver] (Federal Register, FDA-21CFR Part 310, pg. 53685). In comparison, Silver Sinus colloidal silver solution is only 10 ppm. Silver Salts Are Not Colloidal Silver Silver Salts have mistakenly been called colloidal silver products by certain misinformed people. Colloidal is a term referring to a state of matter. An element or compound is considered colloidal when the particles are sized between one nanometer and one micrometer, and the energy of the substance is predominantly governed by surface effects. A colloid is a solid, liquid or gaseous substance that is insoluble yet remains in suspension and dispersed in another fluid medium. Dissolved sol
