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Fragrance

2-Propenal, 3-phenyl-

CAS 104-55-2 Updated
30

Safety score · 0–100

Caution

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

About

Cinnamaldehyde — the molecule behind cinnamon scent and flavor. A documented strong skin sensitizer and EU-restricted fragrance allergen that must be declared on labels above tiny thresholds.

Skin benefits

  • Strong cinnamon aroma
  • Used at low % in fragrance
  • Some antimicrobial activity

Known concerns

  • Strong skin sensitizer — H317 allergic reactions
  • H315 skin irritation, H319 eye irritation
  • EU Annex III restricted fragrance allergen requiring labeling

References

EU

EU CosIng database

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

Related fragrances

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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.