Solvent
ALCOHOL DENAT. SD ALCOHOL 39-A
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Denatured ethyl alcohol — SD Alcohol 39-A is denatured with diethyl phthalate. Useful as a solvent and astringent, but drying and irritating at high % in leave-on products.
Function
Skin benefits
- Fast-evaporating solvent
- Antimicrobial preservation boost
- Quickens product absorption feel
Known concerns
- Drying and barrier-disrupting at high %
- Stinging on broken skin
- Can worsen skin sensitivity over time
- Denaturants vary by SD-alcohol number
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related solvents
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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.