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Environmental Skin Defense in the Microplastics/Nanoplastics Era: A Technical Perspective on Barrier-Impaired Skin, Airborne Exposure, and Preventive Solutions
Summary
Researchers propose a new product category called environmental skin defense — topical formulations designed to reduce adhesion and residence time of airborne microplastics and particulates on skin — arguing that individuals with compromised barrier function face elevated risk and that conventional skincare frameworks do not adequately address particulate exposure.
Human skin is continuously exposed to the modern environment. While traditional skincare has emphasized hydration, aesthetics, and anti-aging, emerging evidence suggests a broader challenge: persistent contact with environmental particulates, including microplastics (MPs), nanoplastics (NPs), urban dust, combustion-derived particles, and mixed airborne debris. These exposures may be especially relevant for individuals with impaired skin barrier function, including those with atopic dermatitis, allergic contact dermatitis, and irritant contact dermatitis. This paper proposes a new category of innovation: environmental skin defense—preventive topical systems designed to reduce particulate adhesion, residence time, interaction with compromised skin, and downstream inflammatory burden. Rather than focusing solely on cosmetics or aesthetics, this framework integrates dermatology, environmental exposure science, and translational product development. The microplastics era may require a new generation of skin protection strategies.