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Antioxidant

QUERCETIN

CAS 117-39-5
82

Safety score · 0–100

Good

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

Quercetin — a yellow plant flavonoid with strong antioxidant credentials. Used topically for free-radical defense and soothing support. Edible safety background; well tolerated on skin.

Skin benefits

  • Antioxidant
  • Anti-inflammatory
  • Soothes oxidative stress
  • Edible-grade safety

Known concerns

  • Limited topical bioavailability
  • Yellow staining
  • Stability challenges

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.