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Skin Conditioning

POLYMETHYLSILSESQUIOXANE

CAS 68554-70-1
80

Safety score · 0–100

Good

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

Tiny silicone resin spheres that blur the look of pores and give a silky powder feel. Inert and well-tolerated on skin; main downside is environmental persistence.

Function

OPACIFYING

Skin benefits

  • Silicone resin spheres — soft-focus optical effect
  • Silky powder feel
  • Oil absorption, mattifying
  • Inert and stable

Known concerns

  • Synthetic polymer, not biodegradable
  • Inhalation risk in loose powders

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.