Protective Effects of Xanthorrhizol-Rich Extracts Against PM-Induced Skin Damage | Advanced Keratinocyte & 3D Skin Model Research
Introduction Environmental pollution, particularly particulate matter (PM), has emerged as a critical contributor to skin damage and premature aging. Exposure to airborne pollutants induces oxidative stress, inflammatory responses, and disruption of the epidermal barrier. This research investigates the protective role of xanthorrhizol-rich extracts in mitigating PM-induced cellular damage using human keratinocytes and 3D-reconstructed skin models, offering scientific validation for anti-pollution skincare innovations. Mechanisms of PM-Induced Skin Damage Particulate matter penetrates the epidermis and stimulates excessive production of reactive oxygen species (ROS), leading to lipid peroxidation, DNA damage, and activation of pro-inflammatory cytokines. These molecular cascades impair barrier proteins and accelerate cellular senescence. Understanding these pathways is crucial for developing targeted interventions that neutralize oxidative stress and restore skin homeostasis un...