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Surfactant

PPG-33-BUTETH-45

CAS 9038-95-3 / 9065-63-8
65

Safety score · 0–100

Fine

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

A polypropylene glycol-butyl ether ethoxylate used to dissolve oils and fragrances in water-based formulas. Broadly considered low concern when purified to cosmetic-grade.

Function

HAIR CONDITIONINGSKIN CONDITIONING

Skin benefits

  • Solubilizer for fragrance and oils
  • Mild emulsifier
  • Used in clear gels and shampoos

Known concerns

  • Possible 1,4-dioxane trace if unpurified
  • Limited published cosmetic safety reviews

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.