Thickener
BIS-HEMA POLY(1,4-BUTANEDIOL)-9/SMDI COPOLYMER
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A film-forming polymer used to hold the formula together. It has a more noticeable irritation or sensitization profile than basic cosmetic ingredients.
This is a high-molecular-weight polymer or silicone that mostly stays on the surface of skin, hair, or nails to create slip, adhesion, or a uniform film. That keeps it usable in some products, but it is less comfortable than simple moisturizers and should be handled with more caution.
Function
Known concerns
- Possible irritation from residual monomers or impurities
- Acrylate or HEMA-type sensitization
- Possible residual diisocyanate impurities
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related thickeners
Same plant / compound family
Check your shelf
Find BIS-HEMA POLY(1,4-BUTANEDIOL)-9/SMDI COPOLYMER in your products.
Scan any cosmetic product with LuxSense to see if it contains BIS-HEMA POLY(1,4-BUTANEDIOL)-9/SMDI COPOLYMER 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.