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What is it? Overview Usage Side Effects and Warnings

Silver Side Effects and Warnings

Written by FoundHealth.

Safety Issues

While oral use of silver is not believed to be toxic, it can cause a serious cosmetic problem known as argyria: gray-black silver deposits that stain the skin and mucous membranes. The effect is unattractive and, to make matters worse, permanent: once it occurs, the discoloration never goes away. A growing number of cases or argyria have been reported in the United States due to the widespread marketing of colloidal silver products. 1 2 3 Safety in young children, pregnant or nursing women, or people with severe liver or kidney disease has not been established.


  1. Wickless SC, Shwayder TA. Medical mystery--the answer. N Engl J Med. 351(22):2349-50; discussion 2349-50.
  2. Gulbranson SH, Hud JA, Hansen RC. Argyria following the use of dietary supplements containing colloidal silver protein. Cutis. 66(5):373-4.
  3. McKenna JK, Hull CM, Zone JJ. Argyria associated with colloidal silver supplementation. Int J Dermatol. 42(7):549.


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