Sunny Isle Jamaican Black Castor Oil Beard Oil does double duty as beard oil, and a hair and skin moisturizer. This nutrient-rich oil adds shine and body to your beard and treats the skin beneath it. Now you can have thicker, fuller, healthier facial hair. Simply massage 6-8 drops of this formula into your beard every day. It also works to soften rough areas on the skin such as elbows and knees, and even dry, chapped heels.