Ingredient review

Ammonium Polyacryloyldimethyl Taurate

INCI: AMMONIUM POLYACRYLOYLDIMETHYL TAURATE

A safe, synthetic thickener that gives water-based products a smooth, non-sticky feel without clogging pores.

beautyskincarethickener

In plain English

This is a synthetic ingredient that helps make skincare products thicker and more gel-like. It's often used in lightweight gels, serums, and sunscreens to give them a nice, smooth texture that spreads easily on the skin. It doesn't absorb into the skin but stays on the surface to improve the product's feel and stability.

Quick decision guide

Useful, but context matters

Ammonium Polyacryloyldimethyl Taurate 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 Ammonium Polyacryloyldimethyl Taurate.
  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 polymer derived from taurine, designed to thicken and stabilize water-based cosmetic formulations.

How it works

When mixed with water, the polymer chains swell and form a network that increases the viscosity of the product. This helps suspend other ingredients, prevents separation, and gives a smooth, non-greasy feel upon application.

Pros

Lightweight texture

Creates a smooth, non-greasy feel that absorbs quickly, ideal for oily or combination skin.

Good stability

Helps keep formulas from separating, even in products with active ingredients or sunscreens.

Cons and cautions

Synthetic origin

Not derived from natural sources, which may be a drawback for those preferring plant-based ingredients.

Potential tackiness

If used at too high a concentration, it can leave a slightly sticky residue on the skin.

Best for

  • Anyone who prefers lightweight, gel-based moisturizers or serums
  • People with oily or combination skin looking for non-greasy textures

Use caution if

  • Those seeking exclusively natural or plant-derived ingredients

Usage tips

Use in gel-based moisturizers or serums for a lightweight feel.
Pair with humectants like glycerin to enhance hydration without heaviness.

Safety summary

Ammonium Polyacryloyldimethyl Taurate is considered safe for topical use. It has low irritation and comedogenic potential, making it suitable for most skin types.

Research notes

Safety assessments by the Cosmetic Ingredient Review (CIR) panel have concluded that this ingredient is safe for use in cosmetics at concentrations up to 3%. No significant toxicity or sensitization has been reported.

Common label clues

Typical concentration
0.5% to 3%
Regulatory status
Approved for use in cosmetics in the EU, US, and other major markets. Generally recognized as safe at typical concentrations.
Common uses
Gels, Creams, Serums, Sunscreens
Environmental note
As a synthetic polymer, it is not biodegradable. However, it is used in small amounts and is not known to bioaccumulate.

Good to know

  • Often used in 'water gel' sunscreens to improve spreadability and reduce white cast.
  • It is not absorbed into the skin, so it won't contribute to clogged pores.

Common questions

What is Ammonium Polyacryloyldimethyl Taurate in beauty products?

This is a synthetic ingredient that helps make skincare products thicker and more gel-like. It's often used in lightweight gels, serums, and sunscreens to give them a nice, smooth texture that spreads easily on the skin. It doesn't absorb into the skin but stays on the surface to improve the product's feel and stability.

What does Ammonium Polyacryloyldimethyl Taurate do in a beauty product?

When mixed with water, the polymer chains swell and form a network that increases the viscosity of the product. This helps suspend other ingredients, prevents separation, and gives a smooth, non-greasy feel upon application.

Is Ammonium Polyacryloyldimethyl Taurate safe for most people?

Ammonium Polyacryloyldimethyl Taurate is considered safe for topical use. It has low irritation and comedogenic potential, making it suitable for most skin types.

Who should be careful with Ammonium Polyacryloyldimethyl Taurate?

Those seeking exclusively natural or plant-derived ingredients

Research sources

Cosmetic Ingredient Review (CIR) Safety AssessmentOpenINCI Database - Personal Care CouncilOpen

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.