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OAK VINEGAR

CAS -
58

Safety score · 0–100

Moderate

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

A traditional wood vinegar from Quercus oak species used in some cosmetic formulations for its purported skin-conditioning and antimicrobial properties.

Oak Vinegar (also called oak pyroligneous acid or oak tar) is obtained by condensing smoke from carbonized Quercus acutissima (Japanese oak) wood. Similar to bamboo vinegar, it is a complex mixture of organic acids, phenols, and carbonyl compounds from the pyrolysis process. The EU does not specifically restrict wood vinegars, but the variable composition and potential for PAH (polycyclic aromatic hydrocarbon) contamination raise safety questions. It is used in some traditional Asian cosmetic formulations for skin conditioning.

Skin benefits

  • Traditional skin conditioning properties
  • Antimicrobial properties
  • Used in some acne treatment formulations

Known concerns

  • Variable composition from pyrolysis process
  • Potential PAH contamination from smoke
  • Limited Western safety assessment
  • Skin irritation possible in sensitive individuals

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, so always read the physical product label and consult a healthcare professional for personal concerns.