Other
DIETHYL MALATE
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Diethyl Malate is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.
Diethyl malate (CAS 7554-12-3) is the diethyl ester of malic acid (the fruit acid from apples). In cosmetic formulations it functions as a skin-conditioning agent and fragrance ingredient. The esterification reduces the acidity of malic acid, making it milder on the skin. No hazard statements are assigned to this compound, and it is not listed on any EU restriction or prohibition list. Its ester bond is susceptible to hydrolysis, generating ethanol and malic acid at low rates, which is toxicologically inconsequential at cosmetic use levels.
Skin benefits
- Skin conditioning — emollient and texturising effect
- Mild fruit-acid derivative — supports gentle exfoliation at appropriate pH
- Fragrance ingredient — contributes to fruity ester scent
Known concerns
- Mild ester hydrolysis — generates trace ethanol and malic acid
- Not restricted in EU cosmetics — no specific concerns identified
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.