Acrylates/C12-22 Alkyl Methacrylate Copolymer

Acrylates/C12-22 Alkyl Methacrylate Copolymer is a synthetic polymer — a long-chain molecule made up of repeating units — commonly used in skincare formulations. It belongs to a class of film-forming agents that are also found in cosmetics, adhesives and coatings across multiple industries.

In skincare products, this ingredient is used primarily to create a thin, flexible film on the skin's surface. This film can help to smooth the appearance of texture, provide a light protective barrier, and improve the feel and wear-time of formulations.

When applied to skin, this copolymer dries to form a thin, continuous film. This film sits primarily on the skin surface rather than penetrating deeply into the epidermis. The film helps to even out micro-irregularities in skin texture, which can visually blur fine lines and create a smoother appearance.

Because the film is flexible and breathable, it generally allows normal skin function to continue. It does not occlude the skin in the way heavier silicones or waxes might, making it suitable for use across different formulation types.

This ingredient is typically formulated into serums, primers, or lightweight moisturisers at low concentrations. It works best when applied to clean, dry skin as part of your regular routine. Because it sits on the skin surface, it layers well with other actives — apply it after water-based treatments and before oils or balms if desired. Patch test first if you have very sensitive skin, as film-formers occasionally cause mild irritation in susceptible individuals.