POLYQUATERNIUM-1 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
POLYQUATERNIUM-1
Safety grade: A
A synthetic polymer that forms a protective layer on skin or hair. It's a conditioning agent that helps products stick around longer and feel smoother.
This film-forming ingredient creates a thin, invisible coating on the skin or hair surface that helps lock in moisture, improve texture, and enhance product durability.
Graded using: COSING.
Last verified: May 26, 2026
Other Film Forming ingredients
- CELLULOSE GUM — Grade A
- GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE — Grade A
- POLYQUATERNIUM-7 — Grade B
- POLYQUATERNIUM-10 — Grade A
- HYDROXYETHYLCELLULOSE — Grade A
- ACRYLATES COPOLYMER — Grade A
- MALTODEXTRIN — Grade A
- CERA ALBA — Grade A