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Fragrance

GUAIACOL

CAS 90-05-1 Updated
40

Safety score · 0–100

Moderate

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

About

A smoky-medicinal phenol used as a fragrance, flavor, and antiseptic. PubChem flags oral toxicity plus skin and eye irritation; some classifications go higher to organ-damage warnings.

Function

PERFUMING

Skin benefits

  • Smoky-medicinal fragrance and flavor note
  • Used as antiseptic-aromatic in trace amounts
  • Building block in fragrance synthesis

Known concerns

  • GHS H302 harmful if swallowed
  • GHS H315 skin irritation, H319 serious eye irritation
  • Some sources list H318 serious eye damage and H370 organ damage
  • Phenolic — possible sensitizer and corrosive at high %

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.