Spelled many different ways, such as lofah, luffa or lufa , the loofah cleans, softens and exfoliates the skin. The loofah is a climbing plant and is related to the cucumber. It is the only plant that is grown for the purpose of becoming a sponge. This makes it an organic, renewable product, which is good for the environment. Natural loofah is harvested from several types of gourds grown worldwide. When fully matured, the dried and crisp outer covering is peeled off, revealing the inner fibers that make up the natural loofah sponge.