POLYQUATERNIUM-29 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYQUATERNIUM-29

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 protective coating.

It reduces static buildup in hair and leaves a smooth, protective film on the hair surface to improve texture and reduce flyaways.

Graded using: COSING.

Last verified: May 26, 2026