Ingredient review
Acrylamide/Sodium Acryloyldimethyltaurate Copolymer
INCI: ACRYLAMIDE/SODIUM ACRYLOYLDIMETHYLTAURATE COPOLYMER
A safe synthetic thickener that gives products a silky, lightweight feel without clogging pores.
In plain English
This is a synthetic ingredient that helps lotions and creams feel smooth and spread easily. It works by forming a light gel network that holds water and other ingredients together, so the product doesn't separate or feel runny. It's often used in gel-creams and lightweight moisturizers.
Quick decision guide
Useful, but context matters
Acrylamide/Sodium Acryloyldimethyltaurate 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.
- Step 1Start with the score, then check the irritation and clogging risk before judging Acrylamide/Sodium Acryloyldimethyltaurate Copolymer.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- 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
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A high-molecular-weight synthetic polymer made from acrylamide and sodium acryloyldimethyltaurate monomers. It is a white powder that swells in water to create a gel-like texture.
How it works
When mixed with water, the polymer chains unwind and form a three-dimensional network that traps water molecules. This increases the viscosity (thickness) of the formula and helps keep oil and water phases from separating. It also leaves a thin, non-greasy film on the skin that can improve the feel of other ingredients.
Pros
Lightweight feel
Creates a silky, non-greasy texture that absorbs quickly, making it ideal for daytime moisturizers and primers.
Stable formulas
Helps keep water and oil mixed together, so your product stays smooth and effective from first use to last.
Cons and cautions
Synthetic origin
Made from petroleum-derived monomers, which may be a concern for those seeking natural or plant-based ingredients.
Potential impurity concern
Trace amounts of acrylamide monomer can remain; however, cosmetic-grade versions are purified to meet strict safety limits set by regulators.
Best for
- People who prefer lightweight, gel-type moisturizers
- Those with oily or combination skin looking for a matte finish
Use caution if
- Individuals who strictly avoid synthetic ingredients
Usage tips
Safety summary
Generally recognized as safe for topical use at typical concentrations. The main safety consideration is the potential presence of acrylamide monomer, but cosmetic-grade material is purified to meet regulatory limits. No significant irritation or sensitization has been reported in clinical studies.
Research notes
The Cosmetic Ingredient Review (CIR) panel reviewed this ingredient in 2014 and concluded it is safe as used in cosmetics. Studies show low acute toxicity and no significant skin irritation or sensitization. The European Chemicals Agency (ECHA) also lists it as safe for cosmetic use with proper purity controls.
Common label clues
- Typical concentration
- 0.1% to 2%
- Regulatory status
- Approved for use in cosmetics by the FDA and EU CosIng database. The Cosmetic Ingredient Review (CIR) panel has deemed it safe when formulated to minimize acrylamide monomer content.
- Common uses
- Moisturizers, Serums, Sunscreens, Makeup primers
- Environmental note
- As a synthetic polymer, it is not biodegradable in the short term. However, it is used in very small amounts and is not considered a major environmental concern compared to microplastics.
Good to know
- This ingredient is often listed near the end of an ingredient list because it's used at low concentrations.
- It is not the same as polyacrylamide, though they are related; this copolymer is designed to be more water-soluble.
Common questions
What is Acrylamide/Sodium Acryloyldimethyltaurate Copolymer in beauty products?
This is a synthetic ingredient that helps lotions and creams feel smooth and spread easily. It works by forming a light gel network that holds water and other ingredients together, so the product doesn't separate or feel runny. It's often used in gel-creams and lightweight moisturizers.
What does Acrylamide/Sodium Acryloyldimethyltaurate Copolymer do in a beauty product?
When mixed with water, the polymer chains unwind and form a three-dimensional network that traps water molecules. This increases the viscosity (thickness) of the formula and helps keep oil and water phases from separating. It also leaves a thin, non-greasy film on the skin that can improve the feel of other ingredients.
Is Acrylamide/Sodium Acryloyldimethyltaurate Copolymer safe for most people?
Generally recognized as safe for topical use at typical concentrations. The main safety consideration is the potential presence of acrylamide monomer, but cosmetic-grade material is purified to meet regulatory limits. No significant irritation or sensitization has been reported in clinical studies.
Who should be careful with Acrylamide/Sodium Acryloyldimethyltaurate Copolymer?
Individuals who strictly avoid synthetic ingredients
Research sources
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.