Here, our full guide. But it’s simply the gross-out factor that should compel you to clean your hairbrush. To start, regularly cleaning your brush will prolong the life of your tool. (Some brushes can get pretty pricey, so this is no small reason.) But more pressing: It’s much better for your hair. “A clean brush means less damage to your hair and less bacteria on your brush,” says Michael Bowman, hairstylist at Rob Peetoom in Brooklyn. Physical damage can lead to breakage, split ends, and frizz, so a clean brush can lead to overall hair health and manageability. Anderson recommends not only removing hair after every use but rinsing daily (just with water will do). “Remove hair after every use and rinse daily to remove product buildup,” says Anderson. This is particularly important if you are one to use hair care and styling products, as your brush will pick up some of that in use. But as for your deep clean, the one we outlined above? “You should be washing your brushes once a week, or once every other week, depending on how often you use it,” says Bowman. So if you’re not an everyday brusher (looking at you, curly-haired readers), you can likely swing every two weeks, but if brushing is a daily matter, then you really should be washing your hairbrush every week. But if you’re looking for inspiration, here are a few options to consider: