Colloidal silver consists of tiny silver particles suspended in liquid. Usually marketed as dietary supplements, colloidal silver products have been used for a variety of health purposes—although there is no scientific evidence to support their safety or effectiveness. This fact sheet provides a general overview of colloidal silver products and suggests sources for additional information.

Key Points

• The U.S. Food and Drug Administration (FDA) does not consider colloidal silver to be safe or effective for treating any disease or condition.
• The FDA and the Federal Trade Commission (FTC) have taken action against a number of colloidal silver companies (including some companies that sell products over the Internet) for making drug-like claims about their products.
• Colloidal silver can cause many side effects. One example is argyria, a bluish-gray discoloration of the body, which is not treatable or reversible.
• Tell all your health care providers about any complementary and alternative practices you use. Give them a full picture of what you do to manage your health. This will help ensure coordinated and safe care.

Source: http://nccam.nih.gov/health/silver/?nav=rss

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