POLYQUATERNIUM-16 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYQUATERNIUM-16

Safety grade: A

This is a synthetic polymer (plastic-like substance) that is positively charged, making it excellent at reducing static electricity and frizz. It forms a thin, flexible coating on hair and skin.

It eliminates static electricity and creates a protective film that smooths the surface, reduces frizz, and improves shine and manageability.

Graded using: COSING.

Last verified: May 26, 2026