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Banned Substance

Dioxane

CAS 123-91-1 Updated
3

Safety score · 0–100

Avoid

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

About

1,4-Dioxane is an IARC Group 2B carcinogen banned as a cosmetic ingredient in the EU. It can occur as a trace impurity in ethoxylated surfactants and must be kept very low.

Skin benefits

  • Industrial solvent (not deliberately added to cosmetics)

Known concerns

  • EU Annex II banned as an intentionally added cosmetic ingredient
  • IARC Group 2B carcinogen
  • Possible trace contaminant in ethoxylated surfactants — must be minimized
  • Hepatotoxic on chronic exposure

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 — always read the physical product label and consult a healthcare professional for personal concerns.