Castor oil is a traditional healing oil derived from the seed of the castor plant, Ricinus communis. Unique in composition and diverse in effects, it has therapeutic roots dating as far back as Ancient Egypt, where castor beans were ceremonially included in tombs from 4,000 BC. Though the castor seed plant is native to India, most parts of the castor plant have found a useful place in industries across the globe: stems are heavily used in textiles and the oils have long been used as medicinal rubs. Global folkloric healers have used the oil of the castor seed for centuries as a gentle remedy to bring about general well-being, digestive aid, pain relief and skin condition clearing, among other things. Edgar Cayce brought the “mystical” therapeutic remedy to 20th century America, resulting in alleged health recoveries for many individuals. However, in the highly technical system of Western Medicine this simple complementary adjunct therapy has been long forgotten in a popular context. Thus, informed by the research of modern science, it is important step back and consider: what exactly is the reparative magic that sustained castor oil in it’s place as a healing elixir for centuries?