POLYURETHANE-41 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYURETHANE-41

Safety grade: A

This is a synthetic polymer that forms a protective, flexible coating on skin and hair. It's a lab-created material similar to plastics used in many consumer products.

Polyurethane-41 creates a breathable film on the skin and hair surface that locks in moisture, protects against environmental stressors, and improves hair smoothness and shine.

Graded using: COSING.

Last verified: May 26, 2026