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Thickener

HYDROGENATED ETHYLENE/PROPYLENE/STYRENE COPOLYMER

78

Safety score · 0–100

Fine

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

A high-molecular-weight hydrogenated synthetic polymer used as a thickener and skin-feel modifier in lipsticks and sunscreens. Inert to skin; environmental persistence is the main caveat.

Function

SKIN CONDITIONING - EMOLLIENTLIGHT STABILIZERVISCOSITY CONTROLLING

Skin benefits

  • Adds elegant skin feel and water resistance
  • Stabilizes color and pigment dispersion
  • Improves transfer resistance

Known concerns

  • Residual styrene monomer must be controlled
  • High molecular weight limits skin absorption
  • Not biodegradable

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.