What is Kangen Water? Kangen means "return to origin" in Japanese. Kangen Water® is alkaline water produced by Enagic's alkaline ionizer and water filtration machines. For more than 40 years, Kangen Water® has been used in Japan to help restore the body to its original, alkaline state. These machines can transform your ordinary tap water into healthy, fresh tasting alkaline drinking water. Kangen Water® is superior to tap and purified water.