Acrylates/C26-28 Olefin Copolymer: 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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All information on this page is verified using The Personal Care Products Council's (PCPC) INCI database. Our ingredient analyses are based exclusively on PCPC's technical data to ensure accuracy and reliability.

What Is Acrylates/C26-28 Olefin Copolymer?

Acrylates/C26-28 Olefin Copolymer is a man-made polymer created by linking long-chain alkenes sourced from mineral oil with small acrylic acid or methyl acrylate units. The result is a lightweight powder or resin that swells slightly in liquid and helps control texture. Chemists first explored these hybrids in the late twentieth century while searching for alternatives to heavier waxes and gums. The ingredient is produced through controlled free-radical polymerization, a process that bonds the acrylic pieces with the C26-28 olefin chains under heat and pressure, then filters and dries the material into a stable form. You will most often spot it in skin lotions, sunscreens, hair styling creams, color cosmetics such as foundations or mascaras and in some rinse-off masks where a smooth spread and consistent feel are key.

Acrylates/C26-28 Olefin Copolymer’s Cosmetic Benefits/Uses

This ingredient is valued for its ability to act as a viscosity controller. By thickening or stabilizing watery or oily formulas, it keeps creams from separating, gives gels their body and allows sprays or lotions to glide on evenly. The result is a product that feels elegant, stays homogeneous during storage and delivers active ingredients more predictably.

Who Can Use Acrylates/C26-28 Olefin Copolymer

Because this polymer is chemically inert and sits on top of the skin it is generally well tolerated by all skin types, including oily, combination, dry and sensitive. It does not clog pores, pull water from the skin or leave a heavy residue, which makes it a flexible option for people who break out easily or dislike thick textures. Those with extremely reactive or allergy-prone skin may still want to scan full ingredient lists, as irritation is usually triggered by other formula components rather than the copolymer itself.

Acrylates/C26-28 Olefin Copolymer is synthesized entirely from mineral-derived molecules, so it contains no animal material and is suitable for vegans and vegetarians. Most manufacturers also avoid animal testing for polymers of this type, but consumers who follow a strict cruelty-free routine should confirm the finished brand policy.

The ingredient carries no known hormonal activity or systemic absorption, so it is considered safe for people who are pregnant or breastfeeding when used as directed. This is not medical advice, and women who are pregnant or nursing should still check any skincare product with their healthcare provider to be on the safe side.

The copolymer does not increase sun sensitivity and can even help stabilize formulas that contain UV filters, so there are no special daylight restrictions tied to its use.

Potential Side Effects/Adverse Reactions

Responses to topical Acrylates/C26-28 Olefin Copolymer differ from person to person. The issues listed below are possible but uncommon when the ingredient is used correctly by the product formulator. Most users experience no problems.

  • Mild transient stinging if applied to broken or freshly exfoliated skin
  • Low-grade redness or warmth in individuals with very sensitive skin
  • Contact dermatitis in rare cases of true polymer allergy
  • Eye irritation if the raw powder or an unintentional splash gets into the eye
  • Build-up on hair shafts leading to dullness if used in heavy leave-in styling products and not shampooed out regularly

If any irritation, swelling or persistent discomfort occurs stop using the product and consult a healthcare professional.

Comedogenic Rating

Rating: 0 / 5 (non-comedogenic)

Acrylates/C26-28 Olefin Copolymer is a large, inert molecule that does not penetrate pores or leave an oily film, so it will not feed acne-causing bacteria or block follicular openings. Its powdery resin texture disperses evenly then rinses away with regular cleansing, leaving minimal residue. This makes it a safe pick for people who struggle with blackheads, whiteheads or cystic breakouts.

Because it helps bind water and oil phases, the copolymer can even improve the spread of lightweight formulas that might otherwise rely on heavier waxes that are more likely to clog pores.

Summary

Acrylates/C26-28 Olefin Copolymer is mainly a viscosity controller that thickens, stabilizes and improves the feel of creams, gels, sprays and makeup. By swelling slightly in liquid, it keeps formulas uniform and elegant which helps active ingredients distribute evenly across skin or hair.

While not a headline act, the polymer is popular behind the scenes in modern cosmetics thanks to its versatility, low cost and clean skin feel. It appears in everything from sunscreens to styling creams though consumers rarely notice it on the label.

Current safety data rate the ingredient as low risk for irritation, sensitization or systemic absorption. Still, skin is individual so perform a small patch test whenever you try a new product that contains this or any other unfamiliar component.

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