Polyurethane-9
AKA “Film-forming polymer
Synthetic
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Ingredient Facts
Polyurethane-9
AKA: Film-forming polymer
Synthetic · Binding | Film Forming | Skin Conditioning - Emollient | Smoothing · EWG: 4
Plant-Derived
Emollient
Occlusive
Skin Conditioner
Synthetic
Clean
Creates a lightweight, flexible coating that helps product ingredients stay on skin and hair longer while maintaining a smooth, comfortable feel.
CAS #
69011-31-0
Form
Powder
Plant-Derived
Synthetic. Synthesized from polyols and isocyanates, members of the polyurethane chemical family. Produced through step-growth polymerization where isocyanate and hydroxyl groups react to form urethane linkages.
Function
Binding | Film Forming | Skin Conditioning - Emollient | Smoothing
Benefits
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
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score4
CIR Safety Findings
medical-approval, all-shades-safe, Not a Sensitizer
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR
Polyurethane-9 — Duck Heart Ghost