Polyquaternium ●
TL;DR. This ingredient is typically used as a cationic conditioning polymer that improves slip, combability, softness, and frizz control in hair care. It can also add light film formation and sensory cushion in skin and cleansing formulas.
What does Polyquaternium do in a cosmetic formula?
This ingredient is typically used as a cationic conditioning polymer that improves slip, combability, softness, and frizz control in hair care. It can also add light film formation and sensory cushion in skin and cleansing formulas.
Is Polyquaternium clean?
From a clean-beauty perspective, the main issue is that this label describes a broad family rather than one defined molecule, so standing depends on the specific numbered identity. It is generally used at low levels and is often well tolerated, but some versions face scrutiny for synthetic origin, residual monomers, and rinse-off environmental profile.
Is Polyquaternium sustainable?
This material is usually synthetic or semi-synthetic, with feedstocks that may come from petrochemical or cellulose-based sources depending on the exact version. Biodegradability varies, and some cationic polymers can bind strongly to wastewater sludge and sediments.
Is Polyquaternium COSMOS-approved?
COSMOS alignment depends on the specific numbered material, since some naturally derived modified polymers may be permitted under conditions while many fully synthetic versions are not a good fit for COSMOS-natural or COSMOS-organic formulas. From a Green Chemistry view, the key questions are renewable content, residual monomer control, biodegradability, and wastewater fate.
How does Polyquaternium work chemically?
This is a family of high-molecular-weight cationic polymers with permanent positive charges that adsorb onto negatively charged hair and skin surfaces. Typical use levels are often about 0.1% to 2% active depending on the grade, with performance influenced by charge density, molecular weight, salt level, surfactant compatibility, and pH.
Last updated 2026-05-13