Polyquaternium-4

Polyquaternium-4 is a water-soluble cationic polymer known for forming clear, flexible films on hair and skin. Styling sprays, gels, and lotions use it for light hold, reduced static, and better manageability and overall look.
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Ingredient Snapshot

Overview
A conditioning polymer that gives hair light hold without stiffness.
Category
Skin Conditioning, Tone/Texture
Type
Film Former

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Keeps hairstyles looking neat without stiffness and helps tame flyaways. Leaves hair feeling smoother and easier to shape.

Uses In Skincare & Cosmetics

Frequently used in hair sprays, styling gels, and setting lotions; also found in lightweight leave-in creams for touchable control.

Comedogenic Rating

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

Safety

Low overall irritation risk, though cationic polymers can occasionally cause mild stinging or redness, especially near eyes. Rinse-off use further minimizes potential sensitivity; patch test for leave-ins if prone to irritation.

Is Polyquaternium-4 a Good Ingredient?

Rated Good for reliably providing light hold and anti-static control as a water-soluble cationic film that remains flexible and comfortable. It’s broadly used with a good tolerability profile in rinse-off and leave-in formats.

Products with Polyquaternium-4

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