Film Former
POLYESTER-31
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A high-molecular-weight polyester polymer that forms protective films and binds ingredients. Too large to penetrate skin, low irritation risk; main caveat is environmental persistence under microplastic scrutiny.
Function
Skin benefits
- Forms durable cosmetic film
- Improves wear and texture
- Non-irritating to skin
Known concerns
- Environmental persistence under EU microplastic review
- Limited biodegradability
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related film formers
Check your shelf
Find POLYESTER-31 in your products.
Scan any cosmetic product with LuxSense to see if it contains POLYESTER-31 and get a full ingredient breakdown with safety scores.
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.