POLYURETHANE-104 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYURETHANE-104

Safety grade: A

This synthetic polymer creates a flexible, protective film on skin and hair. It helps cosmetics stay in place longer while allowing the skin to breathe naturally. You'll commonly find it in long-wear makeup, waterproof formulas, and styling products where durability matters.

Graded using: COSING.

Last verified: June 9, 2026