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3-DECENOL

CAS 51100-54-0
65

Safety score · 0–100

Fine

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

About

An unsaturated fatty alcohol providing a citrus-rose fragrance, generally considered safe in cosmetics at low concentrations.

3-Decenol is an unsaturated primary alcohol with a citrus and rose-like odor profile, used as a fragrance ingredient in cosmetic formulations. Unsaturated alcohols are generally less sensitizing than their aldehyde counterparts. The compound is listed in CosIng with no restrictions. However, the presence of a double bond makes it susceptible to oxidation, which could produce allergenic by-products over time in stored products.

Skin benefits

  • Provides pleasant citrus-rose fragrance

Known concerns

  • Susceptible to oxidation - may form allergens over storage
  • Limited human sensitization data

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 — always read the physical product label and consult a healthcare professional for personal concerns.