Antimicrobial
POTASSIUM IODIDE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Potassium iodide — a salt that supplies iodide ions for antimicrobial or trace-mineral use. Generally safe at low cosmetic levels, but iodide-sensitive or thyroid-compromised users should avoid.
Function
Skin benefits
- Source of iodide for trace mineral and antimicrobial use
- Used in some specialist scalp/skin formulations
- Long pharma history at controlled doses
Known concerns
- Iodide-allergic individuals can react
- Not for thyroid-condition users without medical advice
- Mild irritation possible at higher percentages
- Rare contact dermatitis reports
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
PubChem
U.S. NIH compound data, GHS hazard codes and toxicity literature.
Related antimicrobials
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.