While beauty trends have come and gone for decades, one trend that has run the test of time revolves around washing your hair. For years experts have been saying the less you wash your hair the better. While each person’s hair and scalp are different, the trend seems to have had some definite truth to it. There is no solid numeric answer as to how long you should go without washing. However, if you pay attention to your hair you can find the right balance for how long you should wait between washings. A lot also depends on your hair type, texture, and your daily routine.