Colloidal Silver
FDA has determined that colloidal silver is not generally recognized as safe or effective for any disease or condition and that over-the-counter colloidal silver products are misbranded. Chronic ingestion can cause argyria, an irreversible blue-gray skin discoloration.
What it is
Suspension of microscopic silver particles in liquid; marketed as a dietary supplement.
None recognized; sometimes sold as supplement (no approved food use).
Why it's flagged
- Chronic ingestion causes argyria (irreversible blue-gray skin discoloration)
- FDA has determined it is not safe or effective for any disease
- No nutritional benefit; not a recognized food substance
What regulators actually say
"All over-the-counter (OTC) drug products containing colloidal silver ingredients or silver salts for internal or external use are not generally recognized as safe and effective and are misbranded."
Regulatory status
United States — FDA
Not GRAS, not approved as a food additive; OTC colloidal silver drug products are misbranded (21 CFR 310.548).
European Union — EFSA
Not authorized for use in foods as a nutrient source.
Scan it before you buy it
Get Ube on iOS or Android — point at any barcode, see what's actually in there.
Get the app