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Sterol peroxide

ERGOSTEROL ENDOPEROXIDE

CAS 2061-64-5
70

Safety score · 0–100

Fine

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

Naturally-occurring sterol peroxide derived from ergosterol with reported antioxidant and anti-inflammatory activity. Cosmetic use is niche and safety data remains limited.

Function

BLEACHING, HUMECTANT, SKIN CONDITIONING

Skin benefits

  • Antioxidant activity in mushroom and yeast extracts
  • Potential anti-inflammatory properties
  • Source of provitamin D-related sterols

Known concerns

  • Limited cosmetic-specific safety data
  • Photochemistry of endoperoxide may produce reactive species
  • Stability issues in formulations

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.