POLYURETHANE-23 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYURETHANE-23

Safety grade: A

Polyurethane-23 is a synthetic polymer that creates a flexible, protective coating on the skin or hair. It's a type of plastic material that dries to form a smooth, breathable layer.

This ingredient forms a thin, flexible film on the skin or hair surface that helps lock in moisture, provides a smooth feel, and can improve the longevity and wear-resistance of cosmetic products.

Graded using: COSING.

Last verified: May 26, 2026