Polyquaternium-10

Benefits
Hair ConditioningAntistaticSoftening

What is Polyquaternium-10?

Polyquaternium-10 is a synthetic cationic polymer produced by quaternizing hydroxyethylcellulose with trimethylammonium groups, imparting a positive charge. This structure enables it to adhere to negatively charged hair surfaces, common in rinse-off and leave-on hair care products like shampoos, conditioners, detanglers, and styling aids. It works by depositing a sheer, flexible film on hair shafts, which reduces inter-fiber friction, neutralizes electrostatic charges, and enhances surface smoothness. This action promotes easier combing, diminishes flyaways, and imparts a silky texture without heaviness. Being highly water-soluble, it disperses readily in formulations and rinses cleanly, supporting its role in daily use products for all hair types.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Antistatic agent
Reduces static electricity and flyaways by improving surface conductivity, enhancing hair manageability and smoothness in conditioners and styling products.
Film former
Creates a continuous film on skin or hair to improve wear, water resistance, transfer resistance, shine, or hold in sunscreens, makeup, and styling products.
Hair fixative
Provides style hold by forming a film on hair, helping maintain shape, reduce frizz, and improve durability in sprays, gels, and mousses.

Benefits

Enhances hair conditioning for better manageability and detangling.

Reduces static electricity to minimize flyaways and frizz.

Softens hair texture, improving smoothness and shine.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
People with frizzy or static-prone hair from dry environments.
Those with rare allergies to quaternary ammonium polymers.
Individuals seeking lightweight conditioning in daily shampoos.
People preferring completely natural or polymer-free hair care.
Users of styling products needing subtle hold and smoothness.
Individuals sensitive to film-forming agents in leave-on products.

Safety Notes

  • Rated as low hazard (score of 1) by Environmental Working Group.
  • Found safe for cosmetic use in reviews by Cosmetic Ingredient Review.

Frequently Asked Questions about Polyquaternium-10

What does Polyquaternium-10 do in hair products?

It conditions hair by forming a light film, reduces static for less frizz, and softens texture for smoother feel.

Is Polyquaternium-10 safe for regular use?

Yes, it carries a low hazard rating and is approved safe in cosmetics by expert reviews.

Can it be used on all hair types?

It suits most hair types, especially those needing antistatic and softening effects, in rinse-off formulations.