The loofah is a vegetable sponge that grows in tropical Asia and China. It is a very fast growing annual that produces vines that can grow over 20 feet high in trees and produces dozens of gourds per plant. When fully matured, the dry outer shell of the fruit is removed to reveal the fibrous skeleton of the loofah plant's fruit. These cleansing sponges gently exfoliate the skin, removing dead cells and improving circulation of blood throughout the body. A mainstay in European spas and Asian baths, loofah sponges revitalise the skin and are renowned for their natural ability to heal one's skin.