Ingredient review

Polyquaternium-10/Phosphorylcholine Glycol Acrylate Copolymer

INCI: POLYQUATERNIUM-10/PHOSPHORYLCHOLINE GLYCOL ACRYLATE COPOLYMER

A gentle conditioning polymer that leaves hair and skin feeling soft without heavy buildup.

beautyskincarehaircareconditioning agent

In plain English

This ingredient is a synthetic polymer that coats the surface of hair or skin. It helps reduce static, adds slip, and makes hair easier to comb. On skin, it leaves a light, non-greasy film that feels smooth. It's often used in rinse-off products like shampoos and conditioners, but also appears in leave-on formulas. Because it's water-soluble, it doesn't tend to build up or cause greasiness.

Review score

Safety, usefulness, and evidence

4.0Good
4.0/ 5

Potentially useful with some tradeoffs

The evidence base is useful, but some claims depend heavily on the formula.

Risk flags are low for most users, though the finished product can still irritate.

Source
synthetic
Evidence
moderate
Irritation
low
Clogging risk
low
How reviews are scored

Quick decision guide

Useful, but context matters

Polyquaternium-10/Phosphorylcholine Glycol Acrylate Copolymer is generally a lower-concern ingredient when the full formula suits your skin.

Plain-English read

Treat this as a practical screening step before you compare products that contain this ingredient.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging Polyquaternium-10/Phosphorylcholine Glycol Acrylate Copolymer.
  2. Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
  3. Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.

Score terms in plain English

Irritation risk

low

Less likely to sting, burn, or bother most users, though sensitive skin can still react.

Clogging risk

low

Less likely to feel heavy or contribute to clogged pores for most skin types.

Evidence level

moderate

There is useful support, but formula details and claim strength still matter.

What it is

A cationic (positively charged) copolymer made from polyquaternium-10 and phosphorylcholine glycol acrylate. It is designed to deposit onto negatively charged hair and skin surfaces, providing conditioning and film-forming benefits.

How it works

The positive charge in the polymer binds to the negative charge on hair and skin, forming a thin, flexible film. This film smooths the hair cuticle, reduces frizz, and improves wet and dry combing. On skin, it helps retain moisture by reducing water loss and gives a soft, velvety feel.

Pros

Gentle conditioning

Provides noticeable softness and slip without weighing hair down, making it suitable for daily use.

Low irritation potential

Generally well-tolerated on skin and scalp, with a low risk of irritation or clogging pores.

Cons and cautions

Possible buildup

In very fine or low-porosity hair, frequent use may lead to a slight film that can dull shine over time.

Synthetic origin

As a lab-made polymer, it may not appeal to consumers seeking natural or plant-based ingredients.

Best for

  • People with dry or damaged hair seeking gentle conditioning
  • Those who want a lightweight, non-greasy skin feel

Use caution if

  • Individuals with very fine or low-porosity hair who are prone to buildup
  • Those who strictly avoid synthetic ingredients

Usage tips

Use in rinse-off products like shampoo and conditioner to avoid heavy buildup on fine hair.
Pair with a clarifying shampoo once a week if you notice any dullness or residue.
For leave-on products, start with a low concentration formula to test how your hair responds.

Safety summary

Polyquaternium-10/Phosphorylcholine Glycol Acrylate Copolymer is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic profile, and no significant safety concerns have been raised by regulatory bodies.

Research notes

Safety assessments for polyquaternium compounds generally support their use in personal care. Specific studies on this copolymer are limited, but its components are well-characterized and widely used. The Cosmetic Ingredient Review (CIR) has reviewed similar polyquaternium ingredients and found them safe as used.

Common label clues

Typical concentration
0.1% to 2%
Regulatory status
Approved for use in cosmetics in the EU, US, and other major markets. No known restrictions at typical use levels.
Common uses
Shampoos, Conditioners, Leave-in treatments, Styling products, Facial cleansers, Moisturizers
Environmental note
As a synthetic polymer, its biodegradability may be limited. However, it is not known to bioaccumulate significantly.

Good to know

  • This polymer is water-soluble, so it rinses out more easily than many silicone-based conditioners.
  • It is often used in 'sulfate-free' shampoos to improve the feel of the hair without harsh detergents.

Common questions

What is Polyquaternium-10/Phosphorylcholine Glycol Acrylate Copolymer in beauty products?

This ingredient is a synthetic polymer that coats the surface of hair or skin. It helps reduce static, adds slip, and makes hair easier to comb. On skin, it leaves a light, non-greasy film that feels smooth. It's often used in rinse-off products like shampoos and conditioners, but also appears in leave-on formulas. Because it's water-soluble, it doesn't tend to build up or cause greasiness.

What does Polyquaternium-10/Phosphorylcholine Glycol Acrylate Copolymer do in a beauty product?

The positive charge in the polymer binds to the negative charge on hair and skin, forming a thin, flexible film. This film smooths the hair cuticle, reduces frizz, and improves wet and dry combing. On skin, it helps retain moisture by reducing water loss and gives a soft, velvety feel.

Is Polyquaternium-10/Phosphorylcholine Glycol Acrylate Copolymer safe for most people?

Polyquaternium-10/Phosphorylcholine Glycol Acrylate Copolymer is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic profile, and no significant safety concerns have been raised by regulatory bodies.

Who should be careful with Polyquaternium-10/Phosphorylcholine Glycol Acrylate Copolymer?

Individuals with very fine or low-porosity hair who are prone to buildup Those who strictly avoid synthetic ingredients

Research sources

Cosmetic Ingredient Review (CIR) - Polyquaternium SafetyOpenPubChem - Polyquaternium-10OpenEuropean Chemicals Agency (ECHA) - Information on ChemicalsOpen

Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.