Jawline and double chin: the exercises that target the right muscles
Most jawline advice fails because it never names the muscles involved. Here's what actually sits under your jaw, which exercises engage it, and what no exercise can do.
Quick answer
A more defined jawline comes from training two muscle groups most advice never names: the platysma, the broad sheet running from your collarbones up over your jaw, and the suprahyoid muscles under your chin. Exercises like the ceiling kiss, resisted chin tucks and platysma presses create tone in exactly the area where softness blurs the jaw's line. Done consistently for several weeks, they improve definition and the habitual posture of the neck and chin. What they cannot do is spot-reduce fat — a double chin that's primarily fat storage responds to overall weight change, genetics and age, not muscle work alone. Most people are dealing with some mix of both, which is why training tone is worth doing for almost everyone.
"How do I get a better jawline" might be the most-searched question in facial fitness, and most of the answers share a flaw: they never tell you which muscles you're supposed to be training. Vague advice produces vague effort, and vague effort produces nothing. So let's start with the anatomy.
What's actually under your jaw
Three structures decide most of what you see:
- The platysma — a broad, thin sheet of muscle that runs from your collarbones, up the front of your neck, over the jawline and into the lower face. When it's toned, it holds the neck and jaw area taut; when it's slack, the area softens and blurs. It's the muscle most "neck firming" is really about.
- The suprahyoid muscles — the small group tucked under your chin between jawbone and throat. Weakness here contributes directly to the soft pocket people call a double chin.
- The masseter — the powerful closing muscle at the angle of the jaw. Here's the counterintuitive part: this one usually needs less work, not more. It's already the strongest muscle in your face for its size, and over-training it with clenching or chewing gadgets mostly risks jaw-joint irritation.
The useful insight: almost everyone's jawline routine should bias towards the front and underside of the neck — the under-trained platysma and suprahyoids — not towards more clenching.
The exercises
Three movements cover the territory. Quality beats quantity on every one of them: the target muscle should be doing the work, not your shoulders, and nothing should hurt.
1. The ceiling kiss — platysma. Sit tall, tilt your head back to a comfortable stretch, and push your lips upward as if kissing the ceiling. You should feel the front of your neck engage and the area under your chin pull taut. Hold for ten seconds, release, repeat five times. If you feel it in the back of your neck instead, you've tilted too far.
2. Resisted chin tuck — suprahyoids and posture. Sit tall, place a fist under your chin, and try to open your mouth against it — slowly, with steady pressure, not a sudden push. The muscles under your chin do the work. Hold for five seconds, rest, repeat eight times. This one also rehearses the chin-back, crown-tall head position that flatters the jaw at rest.
3. The platysma press. Grin widely with lips closed, then jut your lower lip and chin slightly forward and down — you'll see the vertical bands of the platysma stand out in a mirror. Hold five seconds, release, ten repetitions. This is the full-sheet contraction, and the mirror check matters: visible engagement is the point.
Posture is the silent fourth exercise. Hours of looking down at a phone keep the under-chin area compressed and slack; the head-forward position is practically a double-chin training programme. If the postural side interests you, that's the territory where mewing makes its claims — see our honest comparison of facial yoga vs mewing for where tongue posture helps and where it's oversold.
What exercise can't do
Time for the honest paragraph. A double chin is some mixture of three things: slack muscle, stored fat, and bone structure. Exercise addresses the first well and influences how the second sits — but no exercise spot-reduces fat, and nothing short of surgery changes bone. If your under-chin fullness is primarily fat storage, overall weight change moves it; genetics and age decide the rest. Anyone promising that five minutes of chin lifts melts fat is lying to you.
The good news is that most people are dealing with a mixture, which means most people see real improvement from training the muscular component — firmer tone, better resting posture, a cleaner line — even while the other components stay what they are.
The form problem, and why consistency fails
These exercises are simple to describe and surprisingly easy to do wrong. The classic failure mode: you do the ceiling kiss for a week, feel it vaguely, can't tell whether anything's engaging, and quietly stop. Without feedback, effort is a guess — and guessed effort rarely survives week three. This is the pattern behind most "I tried it and nothing happened" stories, and it's covered in more depth in does facial yoga actually work.
It's also the specific problem Lift-Era was built to solve: the iPhone's TrueDepth camera reads 52 points on your face and scores every hold in real time, so you can see whether the platysma pull or chin press is actually landing — and watch the number climb as your form improves. For the jaw and neck, where the difference between engaging the right and wrong muscle is nearly invisible in a mirror, measurement is the difference between training and hoping.
Ready to put the jaw work inside a full practice? Start with the complete 8-minute beginner routine.
Frequently asked questions
- Do jawline exercises actually work?
- For the muscle-tone component of definition, yes — the platysma and the muscles under the chin respond to training like any other muscle. For the fat component, no. Exercise can firm what's there; it can't choose where your body stores fat.
- How long until jawline exercises show results?
- With daily practice and correct form, most people notice improved tension and posture in the area within two to three weeks, with visible change over six to twelve weeks. Muscle tone builds gradually — anyone promising a new jawline in five days is selling something.
- Can exercises get rid of a double chin?
- Partially, depending on what's causing it. If slack muscle and forward-head posture contribute, training helps noticeably. If it's primarily stored fat, exercise alone won't remove it — though better tone and posture still improve how the area sits.
- Is it possible to overdo jaw exercises?
- Yes. The jaw's closing muscles are already strong, and clenching-style exercises can aggravate the jaw joint. Good routines bias towards the under-used opening and neck muscles, not more clenching. If you have existing jaw pain or TMJ issues, check with a professional first.
Try it yourself
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