POLYQUATERNIUM-30 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYQUATERNIUM-30

Safety grade: A

This is a conditioning agent derived from plant-based cellulose that has been chemically modified to have a positive charge. It's commonly used in hair care products to make hair smoother and easier to manage.

It reduces static electricity in hair and creates a protective coating on the hair surface that smooths the cuticle, reduces frizz, and improves shine and manageability.

Graded using: COSING.

Last verified: May 26, 2026