Fragrance aldehyde
CIS-NON-2-ENAL
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
cis-Non-2-enal is an unsaturated aldehyde fragrance note that smells like cucumber and melon. It is used in tiny amounts in perfumery and is irritating to skin and eyes at higher levels.
Skin benefits
- Provides a cucumber-melon fragrance note at trace levels
- Used by perfumers to round out fresh aldehydic accords
Known concerns
- GHS H315 skin irritation and H319 serious eye irritation
- Unsaturated aldehyde with sensitisation potential
- IFRA category limits restrict use in leave-on products
- Only safe at very low fragrance dosages
- Not a skin care active in any meaningful sense
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related fragrance aldehydes
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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.