Polyquaternium-11
Cationic conditioning polymer. In haircare reduces static and eases combing; in skincare forms a light film.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Oily, Combination, Sensitive
About this ingredient
Polyquaternium-11 is a synthetic cationic polymer, a quaternary ammonium copolymer of vinylpyrrolidone and dimethylaminoethyl methacrylate. In cosmetics it functions as a film-former and hair conditioner. Manufactured by ISP under the Gafquat brand. Where applied. Hairsprays and mousses (0.5–5%), conditioners, masks, curly hair styling products. The positive charge attracts to negatively charged damaged hair surfaces, forms a thin film, reduces static, eases combing. Safety. The Cosmetic Ingredient Review (CIR) confirmed safety in 2017. Irritation potential is low. Non-comedogenic. Systemic absorption is irrelevant – the molecule is too large to penetrate the epidermis. Pregnancy and lactation – safe. Systemic absorption is minimal; no teratogenic effects reported. Possible drawbacks. Daily use can cause build-up: hair becomes stiff and dull. Solution – periodic clarifying shampoo with sulfates. In patients with scalp eczema it may cause irritation – then replaced with natural conditioners (behentrimonium, hydrolyzed proteins).
Frequently asked questions
Is Polyquaternium-11 safe during pregnancy?
Polyquaternium-11 is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Polyquaternium-11 for?
Polyquaternium-11 suits: normal, dry, oily, combination, sensitive.
What is Polyquaternium-11 and what does it do in cosmetics?
Cationic conditioning polymer.
What's the INCI name for Polyquaternium-11?
The INCI name is Polyquaternium-11. It may also appear as: PQ-11.
See Polyquaternium-11 in a product composition right on the store page
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Similar role in the formula
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