Fragrance
Diethyl maleate, when used as a fragrance ingredient
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Diethyl maleate when used as a fragrance ingredient — a reactive Michael-acceptor ester recognised as a skin sensitizer. EU and IFRA restrict its use; concentrations above the limit must be avoided in leave-on products.
Skin benefits
- Fragrance modifier in trace amounts
Known concerns
- Established skin sensitizer
- IFRA/RIFM restriction
- Michael-acceptor reactivity with skin proteins
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related fragrances
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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.