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Preservative

IODOPROPYNYL BUTYLCARBAMATE

CAS 55406-53-6
30

Safety score · 0–100

Caution

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

A potent preservative used at very low %. EU heavily restricts it: capped at 0.02% leave-on, banned in lip/oral products, and not for products for under-3s except baths.

Skin benefits

  • Broad-spectrum preservation
  • Effective at very low %

Known concerns

  • Top contact allergen
  • Heavy EU restrictions
  • Banned in lip/oral products
  • Not for under-3s leave-on

References

EU

EU CosIng database

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

PC

PubChem

U.S. NIH compound data, GHS hazard codes and toxicity literature.

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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.