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Preservative

DIMETHYLOL UREA

CAS 140-95-4 Updated
18

Safety score · 0–100

Avoid

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

About

A formaldehyde-releasing preservative. Effective against mold but releases formaldehyde, an IARC Group 1 carcinogen and known contact allergen — modern cosmetics avoid it.

Function

ANTIMICROBIAL

Skin benefits

  • Effective preservative
  • Anti-mold action

Known concerns

  • Formaldehyde releaser — sensitizer and IARC carcinogen
  • Restricted by EU SCCS
  • Contact dermatitis
  • Avoid in leave-on cosmetics

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.