POLYQUATERNIUM-77 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYQUATERNIUM-77

Safety grade: A

This is a synthetic conditioning polymer that helps clean, mix ingredients together, and smooth hair. It's a charged molecule designed to stick to hair and skin to provide benefits.

It works as a cleanser and emulsifier to help blend oil and water-based ingredients together, while also coating hair to reduce frizz and improve softness and manageability.

Graded using: COSING.

Last verified: May 26, 2026