POLYQUATERNIUM-107 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYQUATERNIUM-107

Safety grade: A

A conditioning polymer that coats hair strands to make them smoother and easier to manage. It's a man-made ingredient designed to reduce frizz and improve hair's appearance and feel.

This ingredient deposits a protective layer on hair to enhance shine, reduce tangles, improve manageability, and provide a smoother texture.

Graded using: COSING.

Last verified: May 26, 2026

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