Perfect from newborns, babies to children. Will help with with cradle cap, eczema or sensitive skin types. Add Water for the Sponge to Become Super Silky Soft. The beauty of the sponge is its simplicity. It is naturally alkaline to balance the acidity of the skins impurities and oils. KUU Konjac Sponge is suitable for all skin types. Find your perfect partner.