◇ If the sponge becomes dirty, it will be difficult to apply the foundation, so please keep it clean at all times. ◇When the sponge becomes dirty, use the separately sold "Shiseido Sponge Cleaner N" or wash it by lightly pressing it with a neutral detergent diluted with lukewarm water. After rinsing thoroughly so that no detergent remains, drain the water and dry well in the shade before using. ◇If the feeling of use or finish deteriorates, please purchase a new sponge. ◇If you cannot open and close smoothly, please purchase a new foundation case.