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

POLYQUATERNIUM-13

Safety grade: A

This is a synthetic polymer (chain-like molecule) that's commonly used in hair and skincare products. It works by forming a protective layer on the surface of skin or hair to reduce static electricity and improve texture.

This ingredient reduces static electricity and creates a thin protective film on the skin or hair surface, helping to smooth, condition, and improve the appearance and feel of the product.

Graded using: COSING.

Last verified: May 26, 2026