Polyurethane-34
AKA “Polyurethane polymer, Film-forming agent
Ingredient
Ingredient Facts
Polyurethane-34
AKA: Polyurethane polymer, Film-forming agent
Ingredient · Binding · EWG: 4
Synthetic
Not Clean
Polyurethane-34 is a complex polymer that is formed in a multi-step reaction. A copolymer of Hexanediol, Neopentyl Glycol, and Adipic Acid is reacted with hexamethylene diisocyanate. The resulting polymer is further reacted with N-(2-aminoethyl)-3-aminoethanesulfonic acid and ethylenediamine
CAS #
-
Form
Powder
See origin →
Functions
Binding
Holds Formula Together
Holds ingredients together
Traditional Use
Modern synthetic polymer used in cosmetics for film-forming and protective applications. Designed to improve texture, durability, and performance in cosmetic 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