Responsibly harvested off the coast of the Caribbean, this pure silk sea sponge is perfect for gentle face exfoliation. Naturally occurring minerals like calcium, magnesium, sodium, iron, zinc, and potassium that are contained in sea sponges nourish and benefit the skin. Sea sponges are a naturally renewable resource. When sponges are harvested, the sponge divers hand-cut each sponge to ensure that more than one inch of the base remains intact. The sponge then re-grows back to its original form within 3-5 years. Studies show that areas harvested actually increase the population density of sponges. Your sponge can last years if taken care of properly.