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Fragrance

TRANS-3-HEXENAL

CAS 69112-21-6
55

Safety score · 0–100

Moderate

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

Trans-3-hexenal — a green, freshly-cut-grass fragrance aldehyde. Reactive unsaturated aldehyde class; used at trace levels and treated cautiously.

Skin benefits

  • Green-leafy fragrance aldehyde
  • Used at very low %

Known concerns

  • Alpha,beta-unsaturated aldehyde — reactive
  • Likely skin sensitizer
  • Possible respiratory irritation

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.