Keep this number in mind when we start looking at temperature claims by some of the beard straighteners out there.

The design of straighteners meant for your head means that there’s nothing between your flesh and the heating plate.Those stiff bristles help to exfoliate the skin beneath your beard, removing dead skin and helping to distribute sebum to your follicles. The most notable point we found was that 185 degrees Celsius (385 degrees Fahrenheit) was the sweet spot for using heat on hair.

The upgraded Pro Straightener (December 2023 version) is perfect for achieving a long, full, and neat beard in minutes. In general, use the lowest heat setting at first, to see if it suits your needs, and go up only as needed. Testing Notes: There’s a lot to like about this straightener because, well, it works just as well as the best ones on the list and has many of the same features. Some dudes prefer beard brushes and some prefer combs—and this straightener combines the best of both into one handy contraption.There are a couple of other terms to keep in mind when looking at blow dryers and beard straighteners. That’s because the water absorbed in your beard will react to the heat by boiling and expanding which could damage the hair shaft.