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ALCOHOL DENAT. SD ALCOHOL 1

52

Safety score · 0–100

Moderate

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

About

Denatured alcohol used as a solvent and antimicrobial agent in cosmetics, but its drying and irritant properties limit use in sensitive formulations.

SD Alcohol 1 is ethyl alcohol denatured with methyl alcohol and a denatonium benzoate, MIBK, nitropropane, or methyl n-butyl ketone co-denaturant, in accordance with US ATF 27CFR21 regulations. Used in cosmetics as a volatile solvent, antimicrobial, and viscosity-reducing agent. The denaturation makes it non-beverageable but does not eliminate inherent risks of ethanol including mucosal irritation, drieskin barrier disruption, and potential for systemic absorption. EU cosmetics allow denatured alcohol but restrict leave-on concentrations.

Skin benefits

  • Antimicrobial preservative in aqueous cosmetic formulations
  • Volatile solvent improving product feel and quick-dry properties

Known concerns

  • Skin barrier disruption and drying with prolonged use
  • Mucosal/respiratory irritant at high concentrations
  • Flammability risk
  • May enhance penetration of other ingredients

References

EU

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.