Awaken Your Natural Glow with BIYUSEN™
The story of IREN Shizen started when our scientists made a ground-breaking discovery of the magical water found in "moor" onsen (a rare Japanese hot spring), that contains high content of natural moisturizing and anti-aging ingredients to reveal a smooth and silky complexion.
After several years of research, our R&D team perfected the elaborate process to transform "moor" onsen water into an organic compound of skin-renewing acids called BIYUSEN™. This exclusive miracle complex, infused in all IREN Shizen products, is clinically proven to restore skin to its healthiest state with a natural glow.