Exploring the potential of biopolymers in cosmetic applications: Sustainable, biocompatible, and high‐performance materials for future innovations

Abstract Concerns over the potential health risks and environmental impact of synthetic cosmetic ingredients have led to a growing demand for safer, eco‐friendly alternatives. Biopolymers, derived from natural sources, offer unique advantages, including biodegradability, biocompatibility, and nontoxicity, making them ideal candidates for cosmetic formulations. Their ability to form hydrogels, films, and emulsions allows for versatile applications, while their superior water retention and moisture‐binding properties make them valuable in skin hydration and anti‐aging products. This review provides a comprehensive analysis of the current use of biopolymer‐based materials in cosmetics, focusing on the physicochemical properties and their ability to address key industry challenges. It highlights hyaluronic acid, alginate, and chitosan as the most frequently utilized biopolymers, given their significant roles in hydration, active ingredient encapsulation, and skin barrier enhancement. The potential of these and other biopolymers to replace synthetic polymers, offering a safer and more sustainable option for consumers, is also explored. By identifying gaps in research and outlining the latest advancements, this review aims to promote further innovation in the development of biopolymer‐based materials, ultimately contributing to more sustainable and effective cosmetic solutions. Highlights Biopolymeric materials offer sustainable solutions for cosmetic formulations. They enable biocompatible and eco‐friendly cosmetic innovations. Controlled release of actives via biopolymer matrices in cosmetics. Advanced biopolymer systems improve delivery and efficacy of cosmetic products.