POLYQUATERNIUM-9 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
POLYQUATERNIUM-9
Safety grade: A
Polyquaternium-9 is a positively charged polymer (a chain of molecules) that is created in a laboratory. It's designed to cling to hair and skin to provide conditioning benefits and reduce frizz.
This ingredient reduces static electricity in hair and creates a thin protective layer on the surface to improve smoothness, shine, and manageability.
Graded using: COSING.
Last verified: May 26, 2026
Other Antistatic ingredients
- COCAMIDOPROPYL BETAINE — Grade A
- PANTHENOL — Grade A
- GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE — Grade A
- POLYQUATERNIUM-7 — Grade B
- PARAFFINUM LIQUIDUM — Grade C
- POLYQUATERNIUM-10 — Grade A
- LECITHIN — Grade A
- CETRIMONIUM CHLORIDE — Grade A