Polyurethane-5
AKA “Polyurethane polymer, Film-forming agent
Synthetic
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Ingredient Facts
Polyurethane-5
AKA: Polyurethane polymer, Film-forming agent
Synthetic · Film Forming | Skin Conditioning · EWG: 4
Plant-Derived
Occlusive
Skin Conditioner
Synthetic
Clean
Creates a lightweight, flexible coating that helps products stay put and smooth on skin without feeling stiff or heavy.
CAS #
-
Form
Powder
Plant-Derived
Synthetic. Polyurethane-5 is synthesized from polyols and isocyanates, organic compounds derived from petroleum or bio-based sources. The compound is produced through step-growth polymerization, where isocyanate groups react with hydroxyl groups to form urethane linkages.
Function
Film Forming | Skin Conditioning
Benefits
Creates Protective Barrier
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
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