Polyurethane-44
AKA “Polyurethane polymer, Film-forming agent
Ingredient
Ingredient Facts
Polyurethane-44
AKA: Polyurethane polymer, Film-forming agent
Ingredient · Anticaking · EWG: 4
Synthetic
Not Clean
Polyurethane-44 is a copolymer of hexanedioic acid, hexamethylene diisocyanate (HDI), trimethylolpropane, 3-methyl-1,5-pentanediol (MPD), and caprolactone monomers
See origin →
Functions
Anticaking
Bulking
Prevents Clumping
Adds Body & Volume
Adds volume
Traditional Use
Synthetic polymer developed in the mid-20th century. Used in cosmetics as a film-forming and conditioning agent in hair and skin products.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR