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Preservative

HYDROXYMETHYL DIOXOAZABICYCLOOCTANE

CAS 6542-37-6 Updated
24

Safety score · 0–100

Caution

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

About

A formaldehyde-donor preservative used to protect cosmetics from microbial spoilage. Common allergen — flagged in EU regulations for formaldehyde release.

Skin benefits

  • Broad-spectrum preservative
  • Stable across pH range

Known concerns

  • Formaldehyde-releasing preservative
  • Documented skin sensitiser
  • Restricted in EU under formaldehyde labeling rule
  • Not preferred for sensitive-skin formulations

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.