POLYQUATERNIUM-63 is graded B (Low Concern) by Expert·ING, based on COSING regulatory data. It is restricted under EU COSING — AnnexIII-CONCENTRATION-.

POLYQUATERNIUM-63

Safety grade: B

This is a lightweight conditioning agent made in a laboratory that helps hair and skin feel soft and smooth. It works by forming a protective layer that locks in moisture and reduces frizz.

It conditions and softens both hair and skin by coating the surface to improve texture, reduce tangles, and enhance shine while helping products spread evenly.

Graded using: COSING.

Last verified: May 26, 2026

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