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Banned Substance

Isobutane, if it contains = >0,1% w/w Butadiene

CAS 75-28-5
2

Safety score · 0–100

Avoid

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

Isobutane only when contaminated with more than 0.1% butadiene — EU Annex II bans this form. Cosmetic-grade isobutane (purified, propellant) is regulated separately and allowed.

Skin benefits

  • Not applicable in this contaminated listing

Known concerns

  • EU Annex II conditional ban
  • Butadiene >0.1% (Carc. 1A)
  • Flammable gas
  • Asphyxiant

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

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Check your shelf

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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.