POLYQUATERNIUM-2 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYQUATERNIUM-2

Safety grade: A

This is a synthetic polymer that acts like a lightweight conditioning agent. It helps reduce frizz and static electricity in hair while creating a smooth, protective layer on the surface.

Polyquaternium-2 reduces static electricity in hair products and forms a thin protective film that improves smoothness, shine, and manageability while reducing frizz.

Graded using: COSING.

Last verified: May 26, 2026