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Solvent

PROPYLENE GLYCOL BUTYL ETHER

CAS 5131-66-8 Updated
55

Safety score · 0–100

Moderate

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

About

A glycol ether solvent (PGBE) used as a coupling agent. Documented skin and eye irritant; mostly seen in technical and rinse-off cleansing products.

Function

HUMECTANTSOLVENTVISCOSITY CONTROLLING

Skin benefits

  • Coupling solvent
  • Helps dissolve resins and dyes
  • Volatile carrier

Known concerns

  • Skin irritation (H315)
  • Serious eye irritation (H319)
  • Limited cosmetic use; more common in industrial cleaners

References

EU

EU CosIng database

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

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Solvent

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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.