Polyquaternium-28
AKA “PQ-28, Polyquaternium-28”
Synthetic
Ingredient Facts
Polyquaternium-28
AKA: PQ-28
Synthetic · Film Forming · EWG: 4
Synthetic
Occlusive
Synthetic
Clean
Helps reduce frizz and flyaways while creating a lightweight protective layer that keeps hair smooth and shiny throughout the day.
CAS #
131954-48-8
Form
Powder
See origin →
Functions
Antistatic
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Reduces Static
Creates Protective Barrier
Locks In Moisture
Creates protective layer
Reduces flyaways
Traditional Use
A synthetic polymer developed in the 1990s for cosmetic applications. Designed to provide enhanced conditioning and substantivity in shampoos and conditioners while improving product stability.
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: CosIng · EWG · CIR