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Solvent

PPG-9

CAS 25322-69-4
72

Safety score · 0–100

Fine

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

A low-MW polypropylene glycol used for clarity and mild humectancy. Safe on skin with penetration-enhancer considerations.

Skin benefits

  • Solubilizer
  • Humectant
  • Formula clarity

Known concerns

  • Penetration enhancement
  • Environmental persistence

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.