POLYURETHANE-100 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYURETHANE-100

Safety grade: A

This synthetic ingredient is a type of plastic polymer that creates a smooth, flexible film on your skin or hair. It's commonly used in makeup, nail polish, and hair products to improve texture, add shine, and help products stay in place longer without feeling stiff or flaky.

Graded using: COSING.

Last verified: June 9, 2026