Ingredient glossary

Alkyl Acrylate Crosspolymer

What Alkyl Acrylate Crosspolymer does for your skin, who it suits, and what to watch for.

INCI: Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Minor player

In short: Alkyl Acrylate Crosspolymer delivers viscosity control and emulsification, plays a broad, supporting role, and the evidence behind it is strong. One thing to know: needs the right pH to work.

What it does
Viscosity control, emulsification
Best for
A broad, supporting role
Watch out
Needs the right pH to work
Evidence
Strong
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What it actually is

Alkyl Acrylate Crosspolymer: A chain, not a molecule. Built to an average chain length rather than an exact one, so any batch holds a spread around that average instead of a single compound.
There is no single molecule to draw here, and that is the useful part. Which layer things act on

The Glow take

Nice to have, and nothing to overthink.

Alkyl Acrylate Crosspolymer plays a quiet supporting role, rounding out a formula rather than being the reason you buy it.

— Maya

What it does

  • viscosity control
  • emulsification
  • film forming

strong evidenceThe CIR panel's 2017 review of crosslinked alkyl acrylates found them safe as used when formulated to be non irritating and not polymerized in benzene; reported leave-on use runs about 0.1 to 2 percent with maxima near 5 percent. All the evidence concerns rheology and safety, none of it concerns skin benefit.

On a label: usually effective at 0.1-2%.

Who it's for, and who should skip it

Tends to suit

No specific skin type. It is a broadly used ingredient.

Approach with care

No specific group flagged to avoid it.

  • Clogs poresLow
  • Irritation riskLow
  • pH-dependentIts effect depends on the product's pH

How it fits each skin type

  • DryNeutral
  • CombinationNeutral
  • OilyNeutral
  • SensitiveNeutral

Where it fits in your routine

WhenMorning or evening
Where in the orderAfter cleansing, before your moisturizer

Plays well with

  • emulsifiers
  • film formers

Alkyl Acrylate Crosspolymer, answered

Is Alkyl Acrylate Crosspolymer safe during pregnancy?

Yes. Alkyl Acrylate Crosspolymer is considered safe to use during pregnancy and breastfeeding. As with anything, if you are unsure it is worth a quick word with your doctor or midwife.

Who should avoid Alkyl Acrylate Crosspolymer?

No specific group is flagged to avoid Alkyl Acrylate Crosspolymer. It is well tolerated by most skin. Still, introduce anything new one product at a time.

What concentration of Alkyl Acrylate Crosspolymer actually works?

Alkyl Acrylate Crosspolymer tends to do its job in the 0.1 to 2% range. Much lower and it is likely underdosed.

This, for every label you own

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Sources & how we reviewed this

  1. PMID 29025328abstract only, the full text is paywalled

Last reviewed August 2026. Educational information about a cosmetic ingredient, not medical advice.