POLYSILICONE-19 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYSILICONE-19

Safety grade: A

This is a silicone-based conditioning agent that creates a smooth, protective coating on hair. It's a lab-created ingredient designed to improve how hair feels and looks.

Polysilicone-19 conditions and smooths hair by forming a lightweight coating that reduces frizz, adds shine, and improves manageability without weighing hair down.

Graded using: COSING.

Last verified: May 26, 2026