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.
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Ingredient Snapshot

Overview
A conditioning polymer that leaves hair and skin feeling polished.
Category
Skin Conditioning, Tone/Texture
Type
Film Former

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

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.

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.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

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.

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.

Products with Polyquaternium-39

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