A beard takes as much upkeep as the hair on your head — arguably more, because it grows unevenly and sits on skin that also needs looking after. The good news is that the routine is short.
Let it grow before you shape it
The most common mistake is trimming too early. Beards grow at different rates in different places, and a patch that looks thin at two weeks often fills in by six. Give it four to six weeks before you decide on a shape, and resist tidying the cheek line in the meantime.
Wash it, but not with shampoo
Beard hair is coarser than scalp hair and the skin underneath is more prone to drying out. Use a mild beard wash or a gentle cleanser two or three times a week, and rinse with warm rather than hot water. Hot water strips oil and leaves the skin under the beard itchy.
Oil is for the skin, balm is for the hair
Beard oil goes on damp skin after washing — a few drops worked down to the roots, not just over the surface. It is there to stop the skin flaking, which is what most beard itch actually is. Balm or butter comes after, and only if you need to hold stray hairs in place or tame a coarse beard.
Comb before you trim, always
Combing the beard downward pulls every hair to its full length and shows you where it is actually uneven. Trimming an uncombed beard is guesswork. Use a comb and small scissors for the length, and a trimmer with a guard for the bulk.
Leave the neckline to someone else
The neckline and the cheek line are where a home trim usually goes wrong, because you cannot see the angles properly in a mirror. The rule of thumb is roughly two fingers above the Adam’s apple for the neckline, following the jaw’s curve rather than cutting straight across — but a barber with a straight razor will get it cleaner than you will, and it is a short appointment.