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Antioxidant

QUERCUS GLAUCA STEM EXTRACT

Updated
76

Safety score · 0–100

Fine

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

About

A Japanese ring-cup oak stem extract — tannin and polyphenol rich. Useful as an antioxidant and mild astringent conditioner. The Quercus genus has decades of cosmetic use, mostly trouble-free.

Function

SKIN CONDITIONING

Skin benefits

  • Polyphenol antioxidants
  • Astringent conditioning
  • Skin firming feel

Known concerns

  • Astringency on dry skin
  • Sparse species-specific data
  • Possible plant allergy

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.