MARPHI ARGAN Moroccan Black Soap is one of these essentials in cosmetics. 100% natural product, Rich in vitamin E, The gel-like soap made from saponified Argan oil acts as a body masque and is a Moroccan specialty. Black Soap is a soap made from olives is one that is made from plant-based oils. And of all the Castile soaps on the market, traditional Moroccan Black Soap is one of the best. Made primarily from olive oil and macerated olives, this luxurious soap is rich in Vitamin E.