Jamaican Mango & Lime Black Castor Oil Lavender 4oz.Jamaican Mango & Lime Jamaican Black Castor Oils are powerful all-purpose soothing oils roasted and ground manually. Jamaican castor beans are then boiled to produce 100% pure organic oil. These pure and unrefined oils retain their nutritive properties, making them great for skin softening, moisturizing massage oils, or hot oil treatments for dry, damaged hair.