QUATERNIUM-63 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

QUATERNIUM-63

Safety grade: A

Quaternium-63 is a synthetic conditioning agent designed to reduce frizz and static electricity in hair. It works by coating the hair surface to make it smoother and more manageable.

This ingredient reduces static electricity buildup in hair and provides conditioning benefits by smoothing the hair cuticle and improving softness and shine.

Graded using: COSING.

Last verified: May 26, 2026