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Skin Conditioning

CASTANEA CRENATA SHELL EXTRACT

Updated
72

Safety score · 0–100

Fine

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

About

Japanese chestnut shell extract — an upcycled byproduct rich in antioxidant tannins. Generally well tolerated; minor allergy concern for tree-nut sensitive users.

Function

SKIN CONDITIONING

Skin benefits

  • Polyphenol-rich antioxidant
  • Skin conditioning
  • Sustainable upcycled ingredient
  • Mild brightening

Known concerns

  • Tannin astringency
  • Tree nut allergy potential
  • Limited modern dossiers

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.