Apply The Mask Once your hair is dry, untangle it using a wide toothed wooden comb. Get rid of all the tangles, and then, section your hair. Start applying the hair mask from the roots to the tips of your hair. Focus on the tips as these are probably the most damaged parts. Run the comb through your hair again once it is completely covered in the mask. This will help ensure that all of your hair strands have been coated. Wash It Out This one’s pretty self-explanatory. Wash the hair mask out using cool water. The cool water helps seal your cuticles, keeping your hair feeling moisturized and nourished for longer. Squeeze the excess water out of your hair using a towel and proceed to let your hair air dry.