1-NONEN-3-OL
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
An unsaturated aliphatic alcohol with a non-3-yl double bond, used as a fragrance ingredient imparting green, fatty, and slightly metallic notes. The double bond raises some concerns compared to saturated analogs.
1-Nonen-3-ol is an unsaturated aliphatic alcohol (non-1-en-3-ol) with a carbon chain length of 9. The double bond at position 1 creates an allylic alcohol system similar to 1-penten-3-ol, potentially conferring greater chemical reactivity. It is not listed in EU Annex II (banned substances) or Annex III (restricted substances) of the Cosmetics Regulation. The longer carbon chain (C9) compared to the pentenyl analog may affect absorption and skin interaction, with somewhat higher lipophilicity.
Skin benefits
- Provides green, fatty, and metallic fragrance notes
- Used in marine and ozonic fragrance compositions
Known concerns
- Unsaturated allylic alcohol structure may increase reactivity
- Limited skin toxicity data
- The C9 chain length may affect skin absorption
References
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 — always read the physical product label and consult a healthcare professional for personal concerns.