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Banned Substance

Buta-1,3-diene, see also entries 464-611

CAS 106-99-0
2

Safety score · 0–100

Avoid

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

1,3-Butadiene is an IARC Group 1 known human carcinogen and mutagen, linked to leukemia. Banned in EU cosmetics under Annex II.

Skin benefits

  • Industrial monomer for synthetic rubber and polymers

Known concerns

  • EU Annex II banned in cosmetics
  • IARC Group 1 — known human carcinogen (leukemia)
  • CLP Carc 1A / Muta 1B
  • Volatile flammable gas

References

EU

EU CosIng database

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

Related banned substances

2
2,3-Epoxypropan-1-ol (Glycidol)
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4,4'-Bi-o-toluidine (ortho-Tolidine)
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4,4'-Oxydianiline (p-aminophenyl ether) and its salts
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Alkanes, C1-2, if they contain > 0.1% w/w Butadiene
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Alkanes, C4-5, if they contain > 0.1% w/w Butadiene
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Ammonium pentadecafluorooctanoate
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Anthracene oil
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Biphenyl-2-ylamine
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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.