Film Former
BIS-HYDROXYPROPYL DIMETHICONE/SMDI COPOLYMER
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A silicone-urethane copolymer (SMDI = saturated methylene diphenyl diisocyanate) that forms tough, flexible films for long-wear makeup. As a finished polymer it is inert and well tolerated.
Function
Skin benefits
- Long-wear, water-resistant film
- Flexible coverage
- Skin smoothing emolliency
- Improves transfer resistance
Known concerns
- Trace unreacted isocyanate theoretically possible in poor-quality grades
- Not biodegradable
- Limited specific safety data
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related film formers
Same plant / compound family
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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.