POLYESTER-13 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYESTER-13

Safety grade: A

Polyester-13 is a synthetic polymer that forms a flexible, transparent film on hair and skin. It's similar to the plastic-like materials used in many everyday products, but specifically formulated to be safe for cosmetic use.

This ingredient creates a protective coating on hair that helps hold styles in place, reduces frizz, and adds shine while providing long-lasting hold without flaking.

Graded using: COSING.

Last verified: May 26, 2026