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Colorant

CUPROUS IODIDE

CAS 7681-65-4 Updated
55

Safety score · 0–100

Moderate

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

Copper(I) iodide — an inorganic salt used as a stabilizer, colorant, and source of iodide. CIR-reviewed safe for limited cosmetic use, but irritating and harmful if ingested.

Function

ANTIMICROBIALDEODORANT

Skin benefits

  • Source of trace copper and iodide
  • Used as a stabilizer/colorant
  • Antimicrobial activity

Known concerns

  • Copper salts can stain and irritate
  • Iodide release — thyroid concern with chronic exposure
  • Acute oral toxicity if ingested
  • CIR limits cosmetic use to low percentages

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.