Many people may experience dry hair from time to dry, but a persistent case of lackluster hair and a dry, flaky scalp requires extra attention. Although most cases of dry hair can be prevented and treated easily by taking precautions, your dry hair may be caused by genetics or an underlying medical condition.
Identification
Dry hair is typically thin, rough and fragile, making it more prone to tangles, breakage and split ends. You have approximately 100,000 hairs on your head, according to Patrice Hyde, M.D., of KidsHealth.org, with each shaft of hair having three layers; the cuticle or outer layer, protecting the two innermost layers. If your hair is shiny, it's a sign that the cuticle is healthy, but when hair is damaged, the scales of the cuticle separate, leaving hair dry and dull.
Causes
Using harsh soaps or alcohols, excessive blow-drying, dry air, sun and chlorine exposure cause dry hair. Occasionally, dry hair can be a symptom of a medical condition, such as anorexia nervosa, Menkes kinky hair syndrome, thyroid disease or malnutrition.
Prevention
Prevent dry hair by shampooing less frequently, as in every other day or even just once or twice a week. Use a gentle product such as baby shampoo or one specially formulated for dry hair containing humectants, and rinse with warm rather than hot water. You should also avoid blow drying or other heat treatments like curling irons, hot rollers or straightening irons. Use a wide-tooth comb or a brush with natural bristles, since plastic bristle brushes can generate static electricity and make your hair more brittle. When brushing or combing, start at the ends first to avoid pulling or breaking your hair.
Treatments
B vitamins, selenium, and evening primrose oil supplements may make your hair stronger and healthier, from the inside out. A conditioner is also a must; you can choose one designed for dry hair that has a "thermal protector" ingredient like dimethicone or phenyl trimethicone, if you have to blow-dry your hair, or try an over-the-counter hot oil treatment. You can try making your own conditioners from natural ingredients, such as avocado mixed with wheat-germ oil and jojoba oil; mayonnaise; a combination of 2 oz. olive oil and 2 oz. aloe vera gel with six drops each of rosemary and sandalwood essential oils; or in a frizzy emergency, use a little bit of hand lotion and smooth it through your dry hair.
Warning
Because dry hair can be a symptom of certain medical conditions, you should contact your doctor if your dry hair is accompanied by hair loss, weakness, fatigue, depression or joint or muscle pain.
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