POLYQUATERNIUM-35 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYQUATERNIUM-35

Safety grade: A

This is a synthetic conditioning agent that's a type of plastic-like polymer. It forms a lightweight, invisible coating on hair and skin to improve smoothness and reduce frizz.

This ingredient reduces static electricity in hair and creates a thin protective film that smooths the surface, making hair easier to comb and less prone to flyaways.

Graded using: COSING.

Last verified: May 26, 2026