Strengthens Skin and Hair! 100% Raw Black Soap Body Wash is generally made with plantain skins, a good source of Vitamins A and E as well as iron. Vitamin E is an antioxidant that helps your skin retain its health and moisture. Vitamin A keeps your skin young and fights wrinkles and spots. Iron may also strengthen your skin and hair. Provides UV Protection Many types of black soap are made with large amounts of shea butter.