The humble boar's hair brush makes a huge difference in how itchy, scratchy, and straight-up dandruff-y your facial hair looks ... with a wide-tooth beard comb or pick. The best beard brushes ...

In essence, the attachment has 11 comb lengths from 1mm to 3mm so you can choose a hyper-specific length like 1.6mm for your facial hair. For most people, this will be the only accessory they use.