The neckline is the single most important line on your beard. Get it right and even ten days of scruff looks intentional. Get it wrong and a healthy, full beard looks like an accident.
The good news: there's an actual formula. Not vibes — landmarks. Here's exactly where the line goes and how to find it on your own face.
How do you find the right spot?
Three landmarks, one curve:
- Centre point: stack two fingers on top of your Adam's apple, head level. The top of the second finger marks the middle of your neckline.
- End points: the line finishes at a spot roughly behind each earlobe — where the underside of the jaw meets the neck.
- The curve: connect those three points in one smooth, shallow "U". No corners, no straight edges.
A cleaner way to think about it: tilt your head down slightly. Where the skin naturally creases — where neck meets under-jaw — is roughly your line. The beard covers the underside of the jaw; the neck below stays clean to the collar.
Everything below that curve gets removed. Everything above it is beard. That's the whole system.
What does too high look like? What about too low?
Too high is the classic blunder: the line gets cut along the jawbone because that's where the beard visually "ends" in a mirror. Strip the hair from under the jaw and the beard becomes a thin band hugging the chin — the chinstrap effect. Worse, that under-jaw hair is what gives a beard its density and your jawline its weight. Remove it and your face looks rounder and softer, not sharper.
Too low is rarer but real: hair running down toward the collarbone, visible above every t-shirt collar. It doesn't distort your face shape the way a high line does — it just reads as "hasn't been groomed in a while." Between the two mistakes, too low is far cheaper. It's fixed in one pass of the trimmer, whereas a high line costs you two to three weeks of regrowth.
Does your face shape change where the line goes?
Slightly — the two-finger rule is the default, not a law. If you have a shorter neck or a fuller face, nudging the line marginally higher keeps the beard from swallowing your neck entirely. A longer neck can carry the line a touch lower for a fuller look. We're talking small adjustments — a finger-width of judgment, not a different postcode.
Beard length matters too. Long beards hide the neckline under hanging hair, so precision matters less. Short, sculpted beards expose the line completely, so on those it has to be perfect. This is exactly the kind of call a beard sculpt is for — the line gets placed for your jaw, neck, and density, then all you do at home is follow it.
Hard line or faded neckline?
Placement decided, one choice left: the finish.
- Hard line: razor-finished, maximum contrast. Suits short and medium beards, sharp personal style, and anyone who wants the groomed-on-purpose look. Easiest to maintain at home because the target is obvious.
- Tapered: the beard fades from full length down to skin over a centimetre or two instead of stopping dead. More natural, more forgiving as it grows out, great on fuller beards.
Neither is wrong. If you're not sure which suits you, get in the chair and ask — and if you're tempted to set the line yourself first, read this before you pick up the trimmer.