The hair-building fibers are miniscule, natural fibers which blend with your own hair to create a thicker look, in your own hair colour. Hold the dry hair apart to create as much surface area as possible for the fibers. Then use the handy sprinkler bottle to apply the fibers to your hair. After application,you can tap lightly with your fingertips to distribute the fibers. You can also comb the treated area gently.