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Coconut oil is a natural product that can restore moisture and life back to your hair, leaving it soft and shiny. Warm up 1/4 cup of coconut oil. Then, apply evenly through your hair and leave on for about an hour. Rinse it out with lukewarm water once you have allowed it to sit.  Coconut oil can stain clothing and linens, so be careful when using it! Make sure to have an old towel around your shoulders or put your hair up in a shower cap as you let the coconut oil sit. Your hair can be wet or dry when you apply this mask, but it may be easier to apply over wet hair. For an even deeper treatment, put on a shower cap and aim a blow dryer at your hair for about 5 minutes. The heat will help the oil to penetrate deeper into your hair.

Summary:
Use coconut oil.