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CROTONIC ACID

CAS 3724-65-0 Updated
15

Safety score · 0–100

Avoid

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

About

A small unsaturated organic acid used mainly as a chemical building block. Skin and eye corrosive — not appropriate as an active or leave-on cosmetic ingredient.

Function

FRAGRANCELIGHT STABILIZER

Skin benefits

  • Used as a chemical building block
  • Not typically a leave-on cosmetic

Known concerns

  • GHS H315 skin irritation
  • GHS H318 serious eye damage
  • GHS H335 respiratory irritation
  • Corrosive monomer not suited to leave-on cosmetics

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.