Acrylates Copolymer

Acrylates copolymer is a high–molecular weight film-former/thickener used at low levels in leave-on and rinse-off products, and it is generally not skin-penetrating. Clinical experience and patch-test data indicate irritation is uncommon, with rare reactions more often related to impurities/residual monomers rather than the polymer itself. For highly reactive or barrier-impaired skin, the occlusive film can occasionally contribute to stinging or discomfort, so it is best considered very gentle rather than fully inert. Safety Notes: In commercial skincare, Acrylates Copolymer is used at very low levels (~0.05–0.3%) as a rheology/film-forming aid in lotions, serums, and some rinse-off cleansers where it mainly provides suspension and light texture modification. Typical leave-on gels/primers, sunscreens, and long-wear film-forming products more often sit around ~0.5–3%. High-hold peel-off masks, styling/setting-type facial gels, and transfer-resistant/film-forming hybrids available OTC can reach ~5–10% to build a continuous polymer film and stronger sensory effects; this is generally the practical upper end for consumer skincare due to viscosity, tack, and flaking constraints.