Diatomaceous Earth is a natural sedimentary rock formed from the 30 million-years-old chalky remains of microscopic algae-like plants. DE has a variety of uses that fall into several different categories, and is often used as a facial exfoliator, as a household cleaner and deodorizer, and it can also be used as a natural pesticide. This information is for education purposes, and is not intended to diagnose, treat, cure, or prevent any disease. This information has not been evaluated by the Food and Drug Administration.