Acrylates/C10-30 Alkyl Acrylate Crosspolymer: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 23, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Acrylates/C10-30 Alkyl Acrylate Crosspolymer?

Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer made by linking together acrylic acid with long-chain alcohol esters that have between 10 and 30 carbon atoms. During manufacture these chains are further joined, or crosslinked, with small multifunctional molecules such as allyl sucrose or allyl pentaerythritol. The result is a fluffy white powder that swells in water and turns into a smooth gel once neutralised with a base.

The material first appeared in personal care labs in the late 1980s when formulators wanted a thickener that worked in both water and oil-in-water emulsions while giving a fresh, non-sticky feel. Brands quickly adopted it because it simplified the making of clear gels and stable creams, and because only a tiny amount was needed for noticeable results.

Production starts with mixing the monomers in a solvent, triggering a controlled polymerisation reaction and then drying and milling the finished polymer into a fine powder. The process is closely monitored to keep residual monomers extremely low, a key point for safety.

Today you will find Acrylates/C10-30 Alkyl Acrylate Crosspolymer in a wide range of products such as facial moisturisers, anti aging serums, sheet mask essences, sunscreens, hand sanitisers, makeup primers, hair styling gels and rinse-off cleansers.

Acrylates/C10-30 Alkyl Acrylate Crosspolymer’s Cosmetic Benefits/Uses

This versatile ingredient earns its place on an ingredient list by performing several behind-the-scenes tasks that improve how a formula looks, feels and lasts.

    • Emulsion stabilising: It helps keep oil and water mixed so creams do not separate on the shelf or during use which means a longer lasting and more reliable product
    • Film forming: Once a product is applied it leaves a light invisible film that locks in moisture smooths skin texture and can boost water resistance in sunscreens or makeup
    • Viscosity controlling: Even at low levels it thickens water based systems letting chemists create clear bouncy gels or rich velvety creams without heavy oils

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Who Can Use Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Because it is non comedogenic and has a low irritation profile this polymer suits most skin types including oily, combination, dry and even sensitive skin. Those with extremely reactive or allergy-prone skin may still want to review the full ingredient list of the finished product since issues are usually linked to other ingredients rather than the polymer itself.

The material is entirely synthetic and contains no animal derived components so it is considered suitable for both vegans and vegetarians.

Current safety data show no specific risks for pregnant or breastfeeding women when Acrylates/C10-30 Alkyl Acrylate Crosspolymer is used topically in cosmetic amounts. This is not medical advice and anyone who is pregnant or nursing should confirm product choices with a healthcare professional just to be on the safe side.

The polymer does not make skin more sensitive to sunlight so it is not regarded as a photosensitiser. It is also odourless and colorless once dispersed which makes it a good option for people who react to fragrances or dyes.

Potential Side Effects/Adverse Reactions

Reactions to topical Acrylates/C10-30 Alkyl Acrylate Crosspolymer can differ from person to person. The following is a list of potential side effects that may occur in rare cases. When the ingredient is used correctly in a well-formulated product most users will not experience these issues.

      • Mild skin irritation such as itching or transient redness
      • Allergic contact dermatitis in individuals sensitised to acrylic compounds
      • Temporary tight or dry feeling if the formula contains high alcohol levels
      • Stinging or watering of the eyes if a product accidentally gets into the eye area

If any of these effects occur discontinue use and consult a medical professional if symptoms persist or worsen.

Comedogenic Rating

Rating: 0 / 5. Acrylates/C10-30 Alkyl Acrylate Crosspolymer has a very large molecular size and stays on the skin surface instead of slipping into pores, so it is not known to clog them. It does not provide food for acne-causing bacteria and has no oiliness of its own, which is why it earns a zero rating.

Because of this low rating it is generally considered suitable for acne-prone or breakout-prone skin types.

One extra note: the finished product’s overall comedogenicity depends on the full formula, so oily or waxy companions in the same product can still cause congestion even if this polymer does not.

Summary

Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a multi-tasking synthetic polymer that stabilises emulsions, forms a flexible film and controls viscosity. It swells in water then thickens once neutralised, holding oil and water together to keep creams stable, adding a smooth glide and leaving a light breathable layer that helps lock in moisture.

The ingredient is popular in modern skincare because a tiny dose delivers clear gels, silky lotions and transfer-resistant makeup without a heavy feel. You will spot it in everything from sunscreens to hydrating serums to hair gels.

Current research and long-term marketplace use show it is low risk for irritation or sensitisation. Nevertheless skin can be unpredictable so patch testing any new product that contains this polymer is still a smart move.

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