Dandruff can be a major problem, especially for women with dark hair and during the winter months when the scalp is much more likely to dry out. A great cure is pouring vinegar into the hair, massaging it into the scalp, and leaving it to dry for about 5 minutes before washing your hair. Moisturizing treatments can be used in the hair and left in overnight--this is great for the health of your hair and roots as well.