CITRONELLYLOXY ACETALDEHYDE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A citrusy fragrance aldehyde derived from citronellol, classified as a fragrance allergen and requiring EU-mandated labeling declaration.
Citronellyloxy acetaldehyde (3,7-dimethyl-7-octoxy-2-octenal) is a derivative of citronellol used as a fragrance ingredient providing fresh, citrus-green notes. It is listed in EU CosIng and classified as a fragrance allergen under the Cosmetics Regulation, requiring mandatory declaration above threshold (0.001% in leave-on, 0.01% in rinse-off). The ethoxy ether linkage reduces oxidation risk compared to citronellol itself, but sensitization assessment is still required.
Skin benefits
- Provides fresh, citrus-green fragrance character
Known concerns
- EU-mandated fragrance allergen declaration required
- Sensitization potential as with most fragrance aldehydes
- IFRA guidelines apply to concentration limits
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.