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Health is the most important aspect of human life. Recently, there has been a rapid increase in consumer interest in the health-enhancing roles of specific foods and water as it posses’ physiologically active components, so-called as functional foods and functional water. Hydrogen-rich and electrolyzed alkaline waters have been reported as types of functional waters that may ameliorate various oxidative stress–related diseases including various dermatological problems as it has potent anti-oxidant effects. In recent years, molecular hydrogen (H2) has attracted lots of attention in biomedical community such as food and cosmetic industries because of its abilities to modulate signal transduction, protein phosphorylation, and gene expression that enable its anti-inflammatory, anti-allergy, and anti-apoptotic activities. Due to its easy delivery in human body through inhaling H2 gas, drinking H2-dissolved water (H2-water), injecting H2-saline, taking an H2 water bath and H2-spray; popularity of hydrogen business is increasing in many countries including Japan, China and Korea especially in food and cosmetic industries. In Japan, China and Korea, hydrogen-containing beverages and cosmetic items are commercially available in the market. Besides this, new concept of hydrogen-tourism is getting famous in these nations which focuses on the overall holistic approach of human health through introducing various products related with H2 in forms of beverages (coffee, water) and cosmetic products for enhancing beauty and hydrogen spa for relaxation of body and mind and gaining attraction of people.