What Is Polyacrylate-11?
Polyacrylate-11 is a synthetic copolymer made from several acrylic acid–based building blocks: sodium acryloyldimethyl taurate, sodium acrylate, hydroxyethyl acrylate, lauryl acrylate and acrylamide. When these monomers are linked together they form a lightweight powder that swells in water and oil, creating a soft gel texture that is prized in modern skincare.
The technology behind acrylic copolymers dates back to the 1960s when chemists began searching for versatile, highly stable thickeners that could outperform natural gums. Over time formulators fine-tuned the blend of monomers to improve feel and safety, arriving at versions like Polyacrylate-11 in the early 2000s. Production involves controlled free-radical polymerisation, followed by purification and drying to remove unreacted monomers, leaving an odourless white powder.
Because it can suspend pigments, fats and water all at once, Polyacrylate-11 shows up in many product types: lightweight moisturisers, sunscreens, primers, sheet mask essences, color-correcting creams, anti-aging serums and even some micellar cleansers. Its ability to create a cushiony feel without greasiness makes it a favourite in “blur” or “soft focus” formulas designed to smooth the look of pores and lines.
Polyacrylate-11’s Cosmetic Benefits/Uses
In a formula Polyacrylate-11 provides two main technical benefits that translate to a smoother, more stable product for the user.
- Emulsion stabilising – Keeps oil and water evenly mixed, preventing separation over time. This stability means the product applies the same way from the first use to the last, ensuring consistent delivery of active ingredients
- Opacifying – Adds a soft diffusing effect that masks minor color variations in the base and gives creams and lotions an elegant, uniform appearance. This slight cloudiness can also help visually blur fine lines on skin for an instant smoothing effect
Who Can Use Polyacrylate-11
Polyacrylate-11 is generally suitable for all skin types, including dry, oily, combination and sensitive skin. It does not contribute oil or alcohol to a formula so it will not leave a greasy residue or cause excess dryness, which makes it flexible across a wide range of products.
The ingredient is produced entirely from synthetic building blocks and no animal-derived raw materials are used at any stage, making it appropriate for both vegans and vegetarians.
Current safety data show no reproductive or developmental concerns, so products containing Polyacrylate-11 are considered safe for pregnant or breastfeeding women. That said this is not medical advice and anyone who is pregnant or nursing should ask a doctor before introducing new skincare to be on the safe side.
Polyacrylate-11 does not increase photosensitivity, meaning it will not make skin more prone to sunburn. It also plays well with most common actives such as vitamin C, niacinamide and retinoids because it is chemically inert.
Potential Side Effects/Adverse Reactions
Reactions to topical Polyacrylate-11 are rare and will differ from person to person. The points below list potential side effects but most users will not experience them when the ingredient is used correctly in a finished formula.
- Mild redness or stinging right after application
- Dry or tight feeling if the formula has a very high polymer level
- Allergic contact dermatitis in individuals already sensitised to acrylic compounds
- Watery eyes or slight eye irritation if the product accidentally gets into the eyes
If any of the above effects occur stop using the product and consult a healthcare professional or dermatologist for guidance.
Comedogenic Rating
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Polyacrylate-11 molecules are very large and sit on top of the skin instead of sinking into pores, so they do not block follicular openings or feed acne-causing bacteria. They are also oil-free, which further reduces any chance of congestion.
That makes Polyacrylate-11 suitable for people who are prone to acne or breakouts.
Keep in mind overall formulation matters. A product packed with heavy oils or waxes can still clog pores even if this polymer itself is non-comedogenic.
Summary
Polyacrylate-11 works mainly as an emulsion stabiliser and an opacifier. It forms a flexible gel network that locks water and oil droplets in place, stopping them from separating, and its fine particles scatter light to give creams a smooth diffused look.
While not as famous as hyaluronic acid or glycerin, it is quietly popular with formulators who want a silky texture without greasiness, so you will spot it in modern sunscreens, primers and lightweight moisturisers.
Current data show the ingredient is low risk with few reports of irritation or long-term concerns, but as with any new product it is wise to do a quick patch test to be sure your skin agrees with the full formula.