POLYQUATERNIUM-11 is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

POLYQUATERNIUM-11

Safety grade: A

This is a synthetic polymer (chain-like molecule) that's commonly used in hair and skincare products. It's designed to reduce static electricity and create a smooth, protective coating on hair or skin.

It prevents static buildup that makes hair frizz and flyaway, while also forming a thin, flexible film that smooths the hair surface and improves shine and manageability.

Graded using: COSING, FDA.

Last verified: May 26, 2026