Sterol peroxide
ERGOSTEROL ENDOPEROXIDE
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
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 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.