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Solvent

ETHYL PYRROLIDONE

CAS 2687-91-4
35

Safety score · 0–100

Caution

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

Ethyl pyrrolidone (N-ethyl-2-pyrrolidone) is a powerful aprotic solvent used in some formulations as a penetration enhancer. EU regulators classify it as a reproductive toxicant, which heavily restricts cosmetic use.

Skin benefits

  • Strong polar solvent
  • Boosts active ingredient delivery

Known concerns

  • Reproductive toxicity (H360D, may damage unborn child)
  • Causes serious eye damage
  • Skin and respiratory irritant
  • Restricted in EU under CMR criteria

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.