Solvent
PPG-9
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
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 CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related solvents
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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.