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Antioxidant

POLYGONUM FAGOPYRUM STEM EXTRACT

CAS 89958-09-8 Updated
70

Safety score · 0–100

Fine

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

About

Buckwheat stem extract — rich in rutin and quercetin antioxidants used for skin protection. Generally safe topically; main caveats are buckwheat allergy and trace fagopyrin photosensitizer content.

Function

ANTIOXIDANT

Skin benefits

  • Rutin and quercetin antioxidants
  • Polyphenol skin protection
  • Skin conditioning

Known concerns

  • Fagopyrin content can cause photosensitivity in livestock
  • Possible buckwheat-allergy cross-reactivity
  • Limited cosmetic-specific safety data

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.