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Skin Conditioning

QUERCUS ROBUR BARK EXTRACT

CAS 71011-28-4 Updated
72

Safety score · 0–100

Fine

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

About

Oak bark extract — tannin-rich astringent that tightens pores and calms oily skin. Long traditional use; generally well tolerated though tannins can be drying.

Function

ASTRINGENT

Skin benefits

  • Astringent and pore-tightening
  • Tannin-rich antioxidant action
  • Soothing for oily skin

Known concerns

  • Tannins may dry sensitive skin
  • Rare contact reactions
  • Quality varies by extract

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.