Gray hair is caused by a buildup of hydrogen peroxide in the body that interferes with the production of melanin, the chemical that gives hair and skin color, according to MSNBC. Unfortunately, there is nothing much we can do about gray hair unless we decide to cover them with hair color every so often, which can eventually result to dry and damaged hair. Gray hair may also be a result of aging, but is not really something to be alarmed about. Once you begin to develop gray hair, it’s best to treat your hair with special care to ensure that it stays healthy and beautiful. Perhaps you can start with choosing the right hair care products. Here are more tips from eHow.