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Getting a square jawline has become a popular topic lately, and it’s no surprise—you see celebrities, influencers, and even fitness personalities like Joe Rogan talking about jaw exercises. If you’re wondering how to sharpen your jawline and make it more defined, you’re not alone! I’ll break it down like I’m chatting with a friend over coffee.

Table of Contents
Why the Square Jaw is Attractive
A square jawline is often considered a sign of strength and attractiveness for both men and women. Think of cartoon characters with exaggerated square jaws (like Batman or Superman) or female celebrities with strong jawlines like Angelina Jolie. It’s a feature that adds definition and symmetry to your face, which is why so many people want it.

But the big question is: Can you really achieve a more square jawline through exercises?
Do Jaw Exercises Work?
Short answer: Yes, but with limitations.
Jaw exercises can help tone and strengthen the muscles around your jaw (like the masseter muscle) to make it appear more defined. However, exercises alone won’t dramatically change the bone structure of your face. That being said, people have reported seeing differences in jawline sharpness, and there are even before-and-after transformations online showing the impact of jaw exercises.
There’s also something to be said about hormones! In fact, multiple studies have linked higher testosterone levels with more defined and square jawlines. Therefore, you really want to get your testosterone levels checked, and consider taking the steps to raise your T levels if they are too low. This may include losing weight, adopting a regular strength training routine, improving your sleeping schedule, lowering testosterone lowering foods like alcohol and junk foods, and maybe considering some supplements like Ashwagandha, Shilajit, Testosil, Testodren or others that can help with raising testosterone.
The Best Jawline Exercises (That Actually Work)
Here are some key exercises that might help you get that sharp, muscular jawline:
1. Mewing
This one’s been all over social media. It’s a technique where you keep your tongue pressed against the roof of your mouth. Dr. Mike Mew, an orthodontist, popularized it as a way to shape the jawline. The idea is that proper tongue posture can change facial structure over time. While there’s not a ton of scientific evidence behind it, many people swear by mewing.
2. Jaw Exercise Tools
There are several tools designed to give your jaw a workout. Jaw exercise balls (like Jawzrsize, a tool that even Joe Rogan has mentioned) or jaw gum (like Grego Gum) are designed to add resistance when chewing, which strengthens your jaw muscles. There’s also the JawShark, which is another popular device people use. The idea behind these tools is similar to lifting weights for your face.
3. Chewing Gum (Special Jaw Exercise Gum)
If you love gum, this one’s for you! But not just any gum—there’s a specific kind, like Falim Gum, that’s much tougher to chew than regular gum. The idea is that chewing tough gum works the jaw muscles harder, helping to define them. Plus, it’s a simple, low-effort way to keep your jaw busy while doing other things!
4. Jaw Release Exercise
This is a simple stretch that can help relieve tension and tone your jawline. Open your mouth as wide as possible, hold it for a few seconds, then slowly release. Repeating this several times can help tone the jaw muscles and release any built-up tension in your face.
5. Andrew Huberman’s Tips
Andrew Huberman, a neuroscientist and fitness enthusiast, has mentioned jaw exercises and how muscle growth in the face can occur similarly to the rest of the body. Strengthening your jaw muscles through chewing and specific exercises might enhance facial definition over time.
Does Chewing Gum Help?
There’s a common question: Does chewing gum exercise your jaw? Yes, it can, but chewing regular gum isn’t going to provide a ton of resistance. If you really want to see results, consider using a special jaw exercise gum like the ones mentioned above.
Jaw Exercise Devices: Are They Worth It?
If you’re really committed, tools like Jawzrsize or the JawShark can speed up your progress. These are little devices that create resistance when you bite down, making your jaw muscles work harder. If you’re into fitness, think of it as weightlifting for your face!
6. Best Jaw Exercise Tools
- Jawzrsize (made popular by Joe Rogan and other fitness enthusiasts)
- JawShark
- Chewing gum alternatives like Falim Gum or Grego Gum.
For the Ladies: Square Jaw for Women
Women with square jaws (think of Jennifer Garner or Olivia Wilde) often have a defined, strong look. If you’re a woman looking to define your jawline, these exercises can help—but don’t worry, you won’t look overly masculine unless you’re going for that look!
What About Surgery?
If you’re looking for more permanent changes, some people opt for square jaw surgery. This can either reduce or enhance the jawline, depending on your goals. Botox is also a popular, non-invasive option to slim down the jawline if you’re dealing with muscle overgrowth. It’s good to know these are options, but they come with risks and costs. Square jaw reduction surgery can be quite expensive and involves a longer recovery time.
Wrapping It All Up
So, can you really get a square jaw through exercises? To an extent, yes! Regularly performing jaw exercises and using tools like the JawShark or Jawzrsize can help you develop a more defined jawline. Just remember, like any other muscle in your body, it takes time, effort, and consistency.
If you want to dive deeper into the science of how these exercises work, check out sources like Huberman Lab or research from orthodontists like Dr. Mike Mew.
In the end, exercises are a great starting point, but remember, jawline definition also has a lot to do with overall body fat levels and genetics. So, pair these exercises with a healthy diet and overall fitness routine, and you’ll be on your way to a sharper jawline in no time!

Amine is a Toronto based entrepreneur who is passionate about Fitness, Diet and Health. He is passionate about teaching other entrepreneurs and “office workers” how to stay fit using simple yet effective bodyweight workouts that can be accomplished anywhere.