Ingredient review

Acryloyldimethyltaurate/Laureth Copolymer

INCI: SODIUM ACRYLOYLDIMETHYLTAURATE/METHACRYLAMIDOLAURIC ACID COPOLYMER

A reliable synthetic thickener that gives gels and creams a silky, non-sticky feel without clogging pores.

beautyskincaretexturizer

In plain English

This ingredient is a synthetic polymer that helps skincare products feel smooth and lightweight. It thickens watery formulas into a gel-like texture and helps keep oil and water mixed together so the product doesn't separate. It's often used in gel moisturisers, sunscreens, and primers to create a silky, non-greasy finish.

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

Acryloyldimethyltaurate/Laureth 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 Acryloyldimethyltaurate/Laureth 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 high-molecular-weight synthetic copolymer made from acryloyldimethyltaurate and methacrylamidolauric acid monomers. It is designed to thicken water-based formulas and stabilise emulsions.

How it works

When added to water, the polymer chains swell and form a network that increases viscosity. This creates a smooth, gel-like texture. It also helps suspend oil droplets in water, preventing separation, and leaves a light, non-sticky film on the skin.

Pros

Silky texture

Gives products a smooth, velvety feel without leaving a heavy or greasy residue on the skin.

Stable emulsions

Helps keep oil and water mixed, so your product stays consistent and effective throughout its shelf life.

Cons and cautions

Synthetic origin

Made from petrochemical-derived monomers, which may be a concern for those who prefer naturally sourced ingredients.

Potential tackiness

At higher concentrations, it can leave a slightly sticky or tacky feel on the skin, especially in humid conditions.

Best for

  • People who prefer lightweight, gel-based moisturisers
  • Those with oily or combination skin looking for a non-greasy finish

Use caution if

  • Those seeking 100% natural or organic formulations

Usage tips

Use in gel-based moisturisers or serums for a lightweight feel.
Combine with humectants like glycerin to enhance hydration without stickiness.
Apply to damp skin for better spreadability and faster absorption.

Safety summary

Considered safe for cosmetic use at typical concentrations. Low irritation and comedogenic potential. Not known to cause sensitisation or toxicity.

Research notes

Safety assessments by the Cosmetic Ingredient Review (CIR) panel have concluded that this polymer is safe when formulated to be non-irritating. No significant human or animal toxicity data raises concerns.

Common label clues

Typical concentration
0.1% to 2%
Regulatory status
Approved for use in cosmetics in the EU, USA, and other major markets. No known restrictions at typical use levels.
Common uses
Moisturisers, Serums, Sunscreens, Makeup Primers
Environmental note
As a synthetic polymer, it is not biodegradable. However, it is used in very small amounts and is not considered a major environmental concern.

Good to know

  • This ingredient is often listed near the end of an ingredient list because it is used at low concentrations.
  • It is compatible with most other skincare ingredients, including active acids and antioxidants.

Common questions

What is Acryloyldimethyltaurate/Laureth Copolymer in beauty products?

This ingredient is a synthetic polymer that helps skincare products feel smooth and lightweight. It thickens watery formulas into a gel-like texture and helps keep oil and water mixed together so the product doesn't separate. It's often used in gel moisturisers, sunscreens, and primers to create a silky, non-greasy finish.

What does Acryloyldimethyltaurate/Laureth Copolymer do in a beauty product?

When added to water, the polymer chains swell and form a network that increases viscosity. This creates a smooth, gel-like texture. It also helps suspend oil droplets in water, preventing separation, and leaves a light, non-sticky film on the skin.

Is Acryloyldimethyltaurate/Laureth Copolymer safe for most people?

Considered safe for cosmetic use at typical concentrations. Low irritation and comedogenic potential. Not known to cause sensitisation or toxicity.

Who should be careful with Acryloyldimethyltaurate/Laureth Copolymer?

Those seeking 100% natural or organic formulations

Research sources

Cosmetic Ingredient Review (CIR) Safety AssessmentOpenEuropean Chemicals Agency (ECHA) InformationOpenPubMed: Polymer thickeners in cosmeticsOpen

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.