Inspired by yu-su-ru, the Japanese haircare tradition of bathing in rice water, the Shu Uemera Izumi Tonic Strengthening Mask moisturises and enhances the radiance of your hair.The balm-like formula is infused with Japanese-sourced rice water, rich in minerals, vitamins and antioxidants. It delivers a surge of moisture to the hair, while helping to protect against the risk of breakage. Applied to wet lengths after shampooing, the mask leaves hair radiant and stronger-looking.