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Solvent

ALCOHOL DENAT. SD ALCOHOL 39-A

55

Safety score · 0–100

Moderate

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

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

SOLVENT

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

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Related solvents

Same plant / compound family

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.