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Solvent

STYRENE

CAS 100-42-5
5

Safety score · 0–100

Avoid

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

Styrene is an industrial monomer, not a cosmetic ingredient. IARC classifies it as probably carcinogenic to humans; it should not appear in finished cosmetics.

Skin benefits

  • Industrial monomer for polymers

Known concerns

  • IARC Group 2A — probably carcinogenic to humans
  • EU CMR substance
  • Skin and respiratory irritant
  • Not appropriate as cosmetic ingredient

References

EU

EU CosIng database

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

Related solvents

5
Distillates (coal tar), light oils, if it contains > 0.1% w/w benzene
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Distillates (coal tar), naphthalene oils, if it contains > 0.1% w/w benzene
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Light oil (coal), coke-oven, if it contains > 0.1% w/w benzene
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Naphtha (petroleum), hydrotreated light, if it contains > 0.1% w/w benzene
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Tar oils, coal, low-temp., if it contains > 0.1% w/w benzene
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2-Bromopropane
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Carbon disulphide
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Lubricating oils, if they contain > 3 % w/w DMSO extract
Solvent

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.