If your hair is dry and fragile, you may want to shampoo only once a week with a moisturizing shampoo. This will help preserve the natural oil and protect against breakage. There are many types of shampoos on the market, look for one that addresses your hair type.
If you notice white flakes in your hair or on your shoulders, you probably have dandruff. Dandruff can be treated with a special medicated shampoo that is available anywhere other hair products can be purchased. Read the instructions on the label for the best results.