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pH Adjuster

ACETIC ACID

CAS 64-19-7
70

Safety score · 0–100

Fine

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

Vinegar acid, used at low concentrations as a pH adjuster and mild antimicrobial. Safe in finished cosmetics; concentrated forms are corrosive and should not be applied directly.

Function

BUFFERINGFRAGRANCE

Skin benefits

  • pH adjuster in cosmetic formulations
  • Mild antimicrobial at low pH
  • Common GRAS food acid
  • Biodegradable

Known concerns

  • Concentrated solutions are corrosive
  • Can sting on broken skin
  • Vinegary odor

References

EU

EU CosIng database

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

PC

PubChem

U.S. NIH compound data, GHS hazard codes and toxicity literature.

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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.