The thought of using clay on the skin is nothing new. The use of clay as a beauty product is as old as humankind. The first written reference known to exist was the use of “stones” and a description of their mineral benefits that dates to Rome (60 BC). Throughout history, clay has been used topically to soothe the skin or internally for medicinal purposes. The first reference to the deliberate eating of clay or dirt is found by Aristotle (384-322 BC) who refers to the practice for therapeutic and religious purposes. Later Marco Polo described how in his travels he saw Muslim pilgrims cure fevers by ingesting “pink earth.” These practices are still followed across cultures, communities and countries today.