Snapshot
- Overview
- A conditioning polymer that leaves hair and skin feeling polished.
- Category
- Skin Conditioning, Tone/Texture
- Type
- Film Former
Polyquaternium-39
Polyquaternium-39 is a water-soluble quaternized polymer that forms a thin, uniform film on skin or hair. It boosts conditioning, cuts static, and improves texture and spread, adding a soft, polished feel in leave-on or rinse-off products.
Like this ingredient?
Our take
Is Polyquaternium-39 a Good Ingredient?
Rated Good for its dependable conditioning and antistatic effects that improve spreadability and a soft finish in hair and skin products. Support comes from broad industry use and performance data rather than strong clinical outcomes, so benefits are moderate.
What it does
Skin Benefits
Eases detangling and leaves hair feeling cushioned and manageable. On skin, it helps create a more uniform-looking surface for a polished appearance.
Where you'll find it
Uses in Skincare & Cosmetics
Common in conditioners, styling creams, and shampoos to boost glide. Also found in gels and light serums where a smoother spread is desired.
Before you use it
Safety
Considered low risk in cosmetics, but may cause mild transient irritation, especially around eyes or very reactive skin. Patch testing is prudent for highly sensitive users. No widely recognized regulatory limitations for typical concentrations.
Products with Polyquaternium-39
