Konjac Sponges are made from konjac plant root. They are completely natural and very gentle - ideal for daily exfoliating. They are gentle enough for even most sensitive skin. When using it for the first time, soak it for 15 minutes in warm water. The sponge will expand to about double its size. Gently squeeze excess water out (really gently). Wipe your face in upwards/circular motion. Rinse with cool running water, and again, very gently squeeze excess water out. Hang to dry between the uses, away from the shower steam, so it really has a chance to dry. Next time it will need only about minute or two to soak. You can disinfect it once every two weeks, soak in hot but not boiling water for 5 minutes. About 4-6 weeks later, sometimes longer depending on how often it is used, it won’t expand properly and it might start to crumble away. Time for a new one then! They are available either infused with bamboo charcoal (black sponge), green tea (green), turmeric (yellow), or Clay Powders (Pink). A pure konjac sponge is available as well.