POLYURETHANE-58 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYURETHANE-58

Safety grade: A

A synthetic polymer that forms a flexible, protective layer on skin and hair. It's a plastic-like material that helps products stay in place and provides a smooth coating.

This ingredient creates a protective film on the skin and hair, helps cosmetic products last longer, adds flexibility to formulas, and conditions the skin surface by locking in moisture.

Graded using: COSING.

Last verified: May 26, 2026