POLYQUATERNIUM-53 is graded B (Low Concern) by Expert·ING, based on COSING regulatory data. It is restricted under EU COSING — AnnexIII-CONCENTRATION-.

POLYQUATERNIUM-53

Safety grade: B

This is a synthetic conditioning polymer that coats hair strands to make them smoother and easier to manage. It helps reduce frizz and adds shine to hair.

Polyquaternium-53 conditions and detangles hair by forming a protective coating on the hair shaft, improving softness, manageability, and overall appearance.

Graded using: COSING.

Last verified: May 26, 2026

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