Fragrance allergen
2-Benzylideneoctanal
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Also known as hexyl cinnamal, this is one of the EU's 26 declarable fragrance allergens. It gives a jasmine note but must be labelled and concentration-limited to manage contact allergy risk.
Skin benefits
- Floral-jasmine scent ingredient widely used in fine fragrance and cosmetics
- Long-lasting aroma
Known concerns
- Listed as one of the 26 EU mandatory fragrance allergens (hexyl cinnamal)
- Must be declared on label above 0.001% in leave-on and 0.01% in rinse-off
- Established skin sensitiser, especially when oxidised
- IFRA leave-on limits restrict use levels
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related fragrance allergens
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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.