Polyquaternium-67

Benefits
Hair ConditioningHair Loss Prevention

What is Polyquaternium-67?

Polyquaternium-67 is a synthetic, high-molecular-weight cationic copolymer featuring quaternary ammonium groups, derived from methacryloyl ethyl betaine and other acrylic monomers. Primarily used in rinse-off hair care products like shampoos, conditioners, and detanglers, it functions through electrostatic attraction to the negatively charged hair surface. This deposition creates a thin, flexible film that neutralizes static electricity, minimizes friction between hair fibers, and enhances slip for easier combing. The polymer improves overall hair feel by boosting shine and reducing flyaways, while its water-soluble nature allows it to rinse cleanly without heavy residue. In formulations, it contributes to product stability and sensory attributes, making hair appear healthier and more styled.

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 conditioning
Improves softness, shine, and manageability by reducing friction and static; commonly achieved with cationic agents, silicones, oils, or conditioning polymers.

Benefits

Enhances hair softness, shine, and detangling by reducing surface friction.

Controls static electricity for fewer flyaways and better manageability.

Forms a lightweight film to support styling hold and smoothness.

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 seeking daily conditioning.
Users with known sensitivity to quaternary ammonium compounds.
Individuals wanting improved hair manageability from conditioners.
People experiencing scalp irritation from polymer-based products.
Those looking for antistatic effects in styling products.
Those preferring silicone-free or minimalist hair care routines.

Safety Notes

  • Rated low hazard by EWG with scores of 1 across assessments.
  • Deemed safe for cosmetic use by regulatory reviews with no significant concerns at typical levels.

Frequently Asked Questions about Polyquaternium-67

What products contain Polyquaternium-67?

Commonly found in shampoos, conditioners, and hair detanglers for conditioning benefits.

Is Polyquaternium-67 safe for daily use?

Yes, it holds a low safety rating from EWG and is approved for cosmetics.

Does it help with hair static?

Yes, it acts as an antistatic agent to reduce flyaways and improve smoothness.