POLYURETHANE-25 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYURETHANE-25

Safety grade: A

Polyurethane-25 is a synthetic polymer (plastic-like substance) created in a laboratory. It forms flexible films on the skin or hair surface.

This ingredient helps bind cosmetic formulas together, conditions the skin and hair by creating a protective layer, and can be used in hair straightening or waving products to help set styles.

Graded using: COSING.

Last verified: May 26, 2026

Other Binding ingredients