POLYESTER-37 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYESTER-37

Safety grade: A

This synthetic material is a type of plastic polymer used in cosmetics to create smooth textures and help products glide on evenly. It works as a film-former, meaning it creates a thin, invisible layer on skin or hair. You'll typically find it in foundations, powders, and other makeup products designed for a polished finish.

Graded using: COSING.

Last verified: June 9, 2026