With nearly 10% of the Worlds bananas grown in Brazil, its not surprising that this would be a main ingredient for a deep conditioning treatment. Women in South America often use mashed bananas to help relieve dry skin and hair. A banana mask leaves a hydrated complexion after a quick rinse. You can also combine a few drops of almond oil with mashed bananas to rejuvenate damaged hair. Massage into your hair and then allow it to work its wonder for about fifteen minutes. Because the oils and bananas are quite heavy moisturizers, rinse, shampoo, and condition as usual afterward.