HYDROXYPROPYLTRIMONIUM INULIN is graded A (Safe) by Expert·ING, based on COSING regulatory data.

HYDROXYPROPYLTRIMONIUM INULIN

Safety grade: A

This ingredient is a modified form of inulin, a natural fiber found in plants like chicory root, that has been chemically altered to help stabilize products and condition hair. It works by forming a protective layer that smooths and softens hair while keeping product ingredients from separating.

It stabilizes emulsions (preventing oil and water from separating) while providing conditioning benefits that make hair smoother, shinier, and more manageable.

Graded using: COSING.

Last verified: May 26, 2026