Exercises that target the chin and neck area can improve muscle tone and create a firmer appearance along the jawline, but they won’t burn fat specifically from under your chin. That distinction matters, because the approach that works best depends on what’s actually causing your double chin. For some people, tightening the muscles and fixing posture makes a visible difference. For others, overall weight loss or even genetics plays a bigger role.
Why Spot Reduction Doesn’t Work
The idea that you can burn fat from one specific body part by exercising that area is one of the most persistent fitness myths. A systematic review and meta-analysis examining localized fat reduction found that “localized muscle training has no effect on localized adipose tissue depots, regardless of the characteristics of the population and of the exercise program.” Across 37 comparisons in the analysis, the effect was essentially zero.
This applies to your chin just as it applies to your belly or thighs. Doing jaw exercises won’t metabolize the fat pad sitting under your chin. What these exercises can do is strengthen and tighten the thin sheet of muscle that spans your neck and lower face, which may improve the overall contour of your jawline. Think of it as toning, not fat-burning.
What Actually Causes a Double Chin
Several factors contribute, and most people have more than one working against them. Excess body fat is the most obvious, but the fat under the chin (called submental fat) is notoriously resistant to diet and exercise. Even people who lose significant weight sometimes find this pocket of fat stays put.
Genetics plays a major role. If your parents or grandparents had a double chin, you’re more likely to develop one regardless of your body type. Genetic factors influence where your body stores fat, how elastic your skin is, and even your jawbone structure. People with a naturally recessed chin or weaker jaw tend to look like they have more fullness in that area, even at a healthy weight.
Aging also contributes. The platysma, a thin sheet-like muscle covering the front of your neck, loses tone over time. As it weakens, skin along the jawline and neck begins to sag. You may notice vertical bands running down the neck as part of this process.
Finally, posture matters more than most people realize. Forward head posture, sometimes called “tech neck,” pushes the head forward while the neck stays in place, compressing the tissue under the chin and making a double chin far more visible. If you spend hours looking down at a phone or hunching over a laptop, posture correction alone can make a noticeable difference.
Exercises That Target the Neck and Jaw
These exercises won’t melt fat, but they strengthen the muscles around your jaw, tongue, and neck. Stronger muscles in this area create a tighter, more defined look. Aim for three sessions per day, and expect to need at least several weeks of consistency before you notice changes. A Northwestern University study on facial exercises found that participants who trained daily for 8 weeks, then every other day through week 20, reported improved facial fullness and satisfaction with their appearance.
Tongue Press to the Roof of the Mouth
Press your tongue flat against the roof of your mouth as hard as you can. You should feel the muscles under your chin engage. Hold for 5 seconds, then relax. Repeat 5 times. This targets the floor of the mouth and the muscles that support the area directly beneath your chin.
Tongue Push Forward
Stick your tongue out as far as it will go. Hold something flat, like the back of a spoon, against the tip and push your tongue against it while simultaneously pressing the spoon back. Hold for 5 seconds. Repeat 5 times. You should feel a strong stretch, not pain.
Chin Tuck
Sit or stand with your shoulders back. Without tilting your head up or down, slide your head straight backward as if you’re making a “double chin on purpose.” You should feel the front of your neck engage and a stretch at the base of your skull. Hold for 5 seconds, then release. Repeat 10 times. This exercise does double duty: it strengthens the deep neck flexors and counteracts forward head posture, both of which improve the look of your jawline.
Neck Extension With Lip Press
Tilt your head back until you’re looking at the ceiling. With your head tilted, press your lips together tightly, as if you’re trying to kiss the ceiling. You’ll feel a stretch and contraction along the front of your neck and the platysma muscle. Hold for 5 seconds, then return your head to neutral. Repeat 5 times.
Jaw Release
Move your jaw as if you’re chewing with your mouth closed. After a few seconds, open your mouth wide with your tongue pressed against your bottom teeth. Hold for 5 seconds, then breathe in and out. This engages muscles across your jaw and lower face.
Fixing Posture for Faster Results
If you have forward head posture, chin tucks alone won’t fully correct the problem. The issue often starts lower, in the upper back, where rounded shoulders and a curved thoracic spine push the neck forward. Your head follows. When you try to pull just your head back without addressing the neck and upper back, you can actually make the compressed look under your chin worse.
Focus on pulling your entire neck back and slightly up, not just tucking your chin. Stretching your chest muscles, strengthening the muscles between your shoulder blades, and being conscious of your screen height throughout the day all help. Many people find that correcting their posture produces the most dramatic visual improvement in their jawline, sometimes within days, because they’re removing the physical compression that was bunching skin and tissue under the chin.
The Role of Overall Weight Loss
If excess body weight is contributing to your double chin, reducing your overall body fat percentage is the most effective strategy. You can’t direct where the fat comes off, but as you lose weight, some of that submental fat will eventually reduce. Cardiovascular exercise and a calorie deficit work together here.
That said, the fat under the chin can be stubbornly persistent. Some people reach their goal weight and still have fullness in that area. This is where genetics and skin elasticity come into play. If you’ve lost a significant amount of weight and still have a double chin, the cause may be loose skin rather than remaining fat, and exercise alone won’t tighten skin that has lost its elasticity.
Realistic Timeline for Visible Changes
Most people notice subtle improvements in muscle tone within a few weeks of daily exercise, with more obvious changes appearing after two to three months. The Northwestern study saw measurable results at the 20-week mark, though participants reported noticing changes earlier. Posture improvements can show results faster since you’re changing alignment rather than building muscle.
Consistency matters more than intensity. Doing these exercises three times a day for five minutes is more effective than one long session. If you’re combining exercises with weight loss and posture correction, the cumulative effect will be more noticeable than any single approach on its own. For people whose double chin is primarily genetic or caused by bone structure, exercises will have limited impact, and cosmetic procedures may be the only option that produces a significant change.