Loofah (or luffa) is a vegetable that softens and expands when soaked with water for amazing gentle exfoliation.4 Pack [to replace quarterly] Soak the sponge with warm water to soften and expand the loofah fibers.  Massage the loofah side of the sponge on your skin gently using small, circular motions with your favorite cleanser.  Gentle use is the key.  Rinse skin thoroughly and finish with hydration. Use 2-3 times a week to exfoliate and massage skin. Rinse and hang to dry between uses.  Replace quarterly.