POLYURETHANE-40 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYURETHANE-40

Safety grade: A

Polyurethane-40 is a synthetic polymer that creates a flexible, breathable protective layer on your skin. It's commonly used in waterproof and long-wearing cosmetic products.

This ingredient forms a thin, flexible film on the skin's surface that helps cosmetic products stay in place longer while allowing the skin to breathe, making it ideal for long-wearing makeup and water-resistant formulations.

Graded using: COSING.

Last verified: May 26, 2026