A hair brush with a cleaning element for removing entwined hair from the brush before or after use. The cleaning element of the brush includes a plate(s) with opening through which the bristles protrude. When the plate is expanded, the plate pushes any hairs entwined in the bristles to the tips of the bristles where they are removed. The brush also has a post mechanism, which allows for the adjustment of the cleaning element to various intermediary positions, effectively adjusting the length of the bristles for use of the brush. A mirror is provided on the back of the brush, on the reverse side from the bristles.