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SD ALCOHOL 1

CAS 8048-19-9
52

Safety score · 0–100

Moderate

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

About

Denatured ethyl alcohol for cosmetic use, offering antimicrobial and solvent properties but with drying and irritant potential at high concentrations.

SD Alcohol 1 is ethyl alcohol co-denatured with methyl alcohol and a denatonium benzoate, MIBK, nitropropane, or methyl n-butyl ketone co-solvent per 27CFR21 US ATF regulations, making it unfit for beverage use. In cosmetics it functions as a volatile antimicrobial solvent and viscosity-reducer. EU Regulation 1223/2009 permits denatured alcohol in cosmetics but restricts concentrations in leave-on products due to barrier disruption and irritation risk. The methyl alcohol co-denaturant adds toxicological concern at high systemic exposure.

Skin benefits

  • Broad-spectrum antimicrobial preservation
  • Quick-dry solvent for improved product aesthetics
  • Reduces viscosity for easier application

Known concerns

  • Drieskin barrier with repeated or high-concentration use
  • Volatile – potential respiratory irritant in poorly ventilated use
  • Enhances dermal penetration of other ingredients
  • Methyl alcohol co-denaturant adds oral toxicity concern

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.