POLYQUATERNIUM-117 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYQUATERNIUM-117

Safety grade: A

This conditioning agent is a synthetic polymer that helps smooth and detangle hair while reducing frizz. It works by coating the hair shaft to improve softness and manageability. You'll typically find it in shampoos, conditioners, and styling products designed to make hair easier to comb and style.

Graded using: COSING.

Last verified: June 9, 2026