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Polyurethane-56
AKA “Polyurethane”
Synthetic
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Ingredient Facts
Polyurethane-56
Synthetic · Film Forming | Binding | Skin Conditioning - Emollient | Smoothing · EWG: 4
Plant-Derived
Emollient
Occlusive
Skin Conditioner
Synthetic
Clean
A lightweight film-forming agent that helps bind ingredients together, creating a smooth, long-lasting finish on skin and hair.
CAS #
1342288-58-7
Form
Powder
Plant-Derived
Synthetic. Polyurethane-56 is synthesized from polyols and isocyanates, chemical compounds derived from petroleum-based feedstocks. The polymer is produced through a condensation reaction between polyol and isocyanate monomers under controlled conditions.
Function
Film Forming | Binding | Skin Conditioning - Emollient | Smoothing
Benefits
Holds Formula Together
Holds ingredients together
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
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Feb 2026
Data: CosIng · EWG · CIR