Shu Uemura Ashita Supreme, 200 ml, Hair and Scalp Problems unisex, The Shu Uemura Ashita Supreme hair mask is an essential step in your hair care ritual. Give it a moment to regenerate and it will repay you with vitality and beauty. Characteristics: moisturises intensely gives hair a brilliant shine hair is soft to the touch How to use: Wash with shampoo, then apply to damp hair. Leave to act as instructed on the packaging, then rinse thoroughly.