CheckVegan

Is Polyquaternium-18 vegetarian?

Polyquaternium-18

Vegetarian Vegetarian
Vegan Vegan

A synthetic cationic polymer used in cosmetic formulations, particularly hair care, as a conditioning and film-forming agent.

Also known as Poly[oxy-1,2-ethanediyl(dimethyliminio)-1,3-propanediylimino-(1,6-dioxo-1,6-heptanediyl)imino-1,3-propanediyl(dimethyliminio)-1,2-ethanediyl dichloride]
INCI name Polyquaternium-18
CosIng ID 79115
Last reviewed 9 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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