POLYURETHANE-19 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYURETHANE-19

Safety grade: A

This synthetic ingredient is a film-forming polymer that helps cosmetics stick to your skin and hair longer while creating a smooth finish. It's commonly used in makeup, nail products, and hair sprays to improve durability and provide a flexible coating that won't crack or peel.

Graded using: COSING.

Last verified: June 9, 2026