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Fragrance

2-Benzylideneheptanal

CAS 122-40-7
50

Safety score · 0–100

Moderate

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

Alpha-hexylcinnamaldehyde — a jasmine-like fragrance ingredient. EU lists it as an allergen requiring labeling above set thresholds; sensitizer for some users.

Skin benefits

  • Jasmine-floral fragrance note
  • Widely used in fine fragrance

Known concerns

  • EU Annex III labeled allergen above 0.001% leave-on / 0.01% rinse-off
  • Skin sensitizer
  • Photo-oxidation byproducts

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.