Polyurethane-9
AKA: Film-forming polymer
Synthetic
Occlusive
Not Clean
Adipic acid, toluene diisocyanate, propylene glycol, ethylene glycol and hydroxyethyl acrylate monomers
CAS #
69011-31-0
Form
Powder
Functions
Binding
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Holds Formula Together
Creates Protective Barrier
Creates protective layer
Holds ingredients together
Traditional Use
A synthetic polymer developed in the mid-20th century for industrial applications. Used in cosmetics as a film-forming agent and texture modifier in formulations like foundations and primers.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR