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Thickener

DECENE/BUTENE COPOLYMER

CAS 30973-93-4
74

Safety score · 0–100

Fine

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

An olefin copolymer (CAS 30973-93-4) used to control viscosity and contribute emollient feel in cosmetic formulations. Generally safe topically but a synthetic polymer with environmental persistence concerns.

Function

VISCOSITY CONTROLLING

Skin benefits

  • Viscosity controller
  • Emollient skin feel
  • Stable in cosmetic formulations
  • No specific EU restrictions

Known concerns

  • Microplastic — environmental persistence concern
  • Not biodegradable
  • Limited skin penetration data for low-MW grades

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, so always read the physical product label and consult a healthcare professional for personal concerns.