Fragrance nitrile
2-UNDECENENITRILE
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
An unsaturated aliphatic nitrile used as a fragrance ingredient with citrus and fatty notes. IFRA restricts its use levels due to nitrile-group systemic toxicity considerations.
Skin benefits
- Adds citrus fatty fragrance note
- Used as fragrance modifier
Known concerns
- Nitrile group raises systemic toxicity concerns
- IFRA restricted in leave-on products
- Possible skin irritation at higher levels
- Limited dermal absorption data
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related fragrance nitriles
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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.