Film Former
POLYESTER-39
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A condensation polyester ending in a benzotriazole-PEG-6 sesquiester, designed as a film-forming sunscreen helper. Polymeric size limits absorption; environmental persistence is the primary caveat.
Function
Skin benefits
- Film-forming polymer for sun-care
- Includes built-in UV-stabilizing benzotriazole moiety
- High-MW reduces skin absorption
Known concerns
- Benzotriazole UV stabilizers are persistent in environment
- Limited specific human safety data
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related film formers
Check your shelf
Find POLYESTER-39 in your products.
Scan any cosmetic product with LuxSense to see if it contains POLYESTER-39 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.