Nourishes hair and scalp for painful hot oil treatment Natural & Organic Ideal for dry skin Jamaican Mango & Lime Jamaican Black Castor Oils are powerful and versatile healing oils made from of Jamaican castor beans that are manually roasted and ground, then cooked to produce a 100% pure organic oil. Our Jamaican Black Castor Oils are pure and unrefined. They retain their nourishing properties and are excellent as a skin softening and hydrating massage oil or hot oil treatment for dry, damaged hair, hair growth and thinning hair.