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Antioxidant

BILIRUBIN

CAS 635-65-4 Updated
70

Safety score · 0–100

Fine

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

About

An endogenous antioxidant produced when the body breaks down hemoglobin. Emerging cosmetic ingredient for free-radical scavenging; stability and limited topical efficacy data keep it in the Fine band.

Function

ANTIOXIDANTCHELATINGREDUCING

Skin benefits

  • Endogenous antioxidant — scavenges peroxyl radicals
  • Chelating ability toward redox-active metals
  • Naturally produced in the body so low immunogenicity expected

Known concerns

  • Photosensitive and light-degradable — formulation stability concern
  • Topical bioavailability and efficacy data still emerging
  • Manufactured grades may carry residual biological-sourcing contaminants

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.