Humectant
POLYPROPANEDIOL-8
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
An 8-mer polymer of 1,3-propanediol — bigger than polypropanediol-3 or -4, still water-loving and skin-friendly. Acts like a richer, less-sticky glycerin. Bio-derived grades dominate; safety profile mirrors the well-characterised propanediol family.
Function
Skin benefits
- Humectant — pulls moisture into skin
- Light non-tacky skin-feel
- Helps stabilise emulsions
Known concerns
- No significant concerns at cosmetic concentrations
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related humectants
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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.