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Banned carcinogen

Ethylene oxide

CAS 75-21-8
2

Safety score · 0–100

Avoid

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

Ethylene oxide is a Group 1 carcinogen and CMR substance prohibited in cosmetics under EU Annex II. Used industrially for sterilization, it has no legitimate place in cosmetic formulations.

Skin benefits

  • No cosmetic benefit; used only in sterilization, not formulations
  • Industrial sterilant for medical devices, never cosmetic

Known concerns

  • Classified as a Group 1 human carcinogen by IARC
  • Prohibited in cosmetics under EU Regulation 1223/2009 Annex II
  • Mutagenic and reproductive toxin (CMR Category 1B)
  • Trace residues regulated in sterilized medical devices
  • No safe use level in cosmetic products

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.