QUATERNIUM-56 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

QUATERNIUM-56

Safety grade: A

Quaternium-56 is a synthetic conditioning agent that helps reduce static electricity in hair and makes it smoother and more manageable. It works by coating the hair shaft to improve texture and reduce frizz.

This ingredient is used in hair care products to eliminate static electricity and provide conditioning benefits that make hair feel softer, shinier, and easier to comb.

Graded using: COSING.

Last verified: May 26, 2026