Studies have revealed that a majority of American women are at least mildly iron deficient. Iron deficiency would cause your hair to be brittle, dull, and hard to manage. Go to Health Services, or to your family doctor, and ask for a test of the iron content in your blood. If it truly is low, they will put you on a supplement, or recommend dietary changes, and you may consequently see changes in your hair. Another important mineral is sulfur, which keeps your hair smooth and silky.
Sulfur is found in amino acids, and the best sources are eggs, fish, beans, nuts, and meat.
Build-up of shampoo residue may coat your hair shaft, making it dull, lifeless, and hard to manage. The best solution is to rotate shampoos, or use a mild, hypo-allergenic clarifying shampoo product, one week out of every month, or every third or fourth time you wash your hair. A natural shampoo will remove the build-up and restore shine to your hair. One last thought. Someone who is familiar and comfortable with your hair type may be able to find a style that is easy to care for and looks great.