DiFeel Brazil Nut Premium Hair Oil 7.78 oz Selenium-rich Brazil nuts. Not only is selenium good for healthy skin and scalp, but this mineral can also help prevent hair loss. Brazil nut oil's ability to moisturize and add shine to dry, damaged hair is also recognized by leading hair treatment centers around the world. Brazil nut oil reduces the formation of split ends when used as a hair treatment. Vitamin E also protects cells from UV rays. Applying Brazil nut oil to your hair before going out in the sun can help prevent sun damage. Application: Apply directly to the hairline and work the oil through the hair strands. Style as desired. Repeat if necessary.