Natural handmade konjac sponge for face and body. Isshin Sponge is grown naturally in the mountains. This gentle cleanser softens when soaked in lukewarm water. It is suitable for all skin types including sensitive skin. When using the Isshin Sponge you should not use soap or other cosmetics with it. When massaging your face, the water layer between the sponge and your skin will absorb all dirt. After each use dry the sponge or store it in a container in your fridge.