The pursuit of radiant, healthy skin is a universal endeavor, driving continuous innovation in dermatological science and skincare. Among the emerging therapeutic agents capturing significant scientific interest is molecular hydrogen, or H2. Once considered biologically inert, hydrogen gas has revealed a remarkable portfolio of selective antioxidant and anti-inflammatory properties, positioning it as a novel candidate for addressing various skin concerns. This article delves into the scientific evidence surrounding hydrogen gas treatment for skin health, examining the mechanisms of action, key research findings, and potential applications as illuminated by contemporary studies.