Polyurethane-39
AKA “Polyurethane polymer, Film-forming agent
Synthetic
Ingredient Facts
Polyurethane-39
AKA: Polyurethane polymer, Film-forming agent
Synthetic · Emollient · EWG: 4
Synthetic
Emollient
Occlusive
Skin Conditioner
Synthetic
Clean
Helps create a smooth, luxurious texture by controlling the product's thickness. This ensures your formula applies evenly and feels silky on skin.
CAS #
-
Form
Powder
See origin →
Functions
Viscosity Controlling
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Smoothing
Controls Viscosity
Traditional Use
Synthetic polymer developed for cosmetic use as a film-forming and conditioning ingredient. Created to enhance product texture, stability, and protective performance in cosmetics.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Insufficient
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR
Polyurethane-39 — Duck Heart Ghost