A lot of people choose Masseter Botox to slim their jawline or help with jaw clenching. It’s a quick treatment that relaxes the jaw muscles and can change the shape of your face in a good way. But lately, some people are asking, can masseter Botox cause jowls? In other words, could it make the skin around your jawline start to sag?
At Becker Plastic Surgery, we’ve worked with all kinds of faces and know how to use Botox the right way. In this guide, we’ll break it all down for you, what’s true, what’s a myth, and what you should know before getting Masseter Botox, especially if you’re worried about jowls.

Masseter Botox and Jowls Explained Simply
- Masseter Botox does not cause jowls. It can make loose skin more noticeable in some people because it reduces muscle support in the jaw area.
- Results differ by person. Skin elasticity, muscle and facial structure affect how Botox changes or shows sagging.
- For many, it improves the jawline. This creates a slimmer and more contoured look, especially when the skin remains firm.
- Speak with a trained provider before treatment. The provider assesses your face and helps you understand if Masseter Botox fits you or if another option is better.
- Additional treatments, such as fillers, RF skin tightening, or medical-grade skincare, often help the skin; they also improve your results.
Can Masseter Botox Improve Jowls or Make Sagging Worse?
Masseter Botox can change the look of your jawline in big ways, but when it comes to jowls, the results really depend on the person.
How Botox Affects the Jawline and Jowls
The neurotoxin works by relaxing muscles. When it’s used in the masseter (the large muscle), it can slim the face and soften a strong or square jawline. That’s great for contouring, but if your skin is already a little loose, this relaxation might make sagging more noticeable.
To be clear: Botox injections don’t cause jowls. But it can reveal skin laxity that was already there by reducing the support from the muscle underneath. On the other hand, for people with firmer skin and good muscle balance, it can actually improve the look of jowls and sharpen the jawline.
Why Results Can Vary from Person to Person
A person’s face differs from others. The strength of facial muscles and bone structure contributes to its appearance; so, Botox may work for some individuals. However, other people may need a different way to achieve the best results.
Thoughtful Masseter Botox shapes your natural features; it does not cause extra sagging. Potential side effects happen, which include slight muscle weakness or an uneven smile; they are usually temporary.
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What Factors Affect Whether Masseter Botox Improves or Worsens Jowls?
- Facial Structure Matters: A person with a naturally defined jawline typically sees more contour after a treatment. But if your jawline is soft or your skin lacks support, relaxing the muscle shows sagging more clearly.
- Muscle Size and Strength: Botox can slim a bulky masseter muscle, which is great for reshaping the lower face. But if the muscle shrinks too much, and the skin isn’t firm, it might highlight laxity.
- Skin Elasticity and Aging: Youthful skin pulls back well, so results appear more taut and even. If your skin feels loose, you need more treatments, such as fillers or skin tightening, to help.
- Personalized Approach: Everyone’s face is different. A skilled provider will tailor the Botox dose and placement to your unique structure, helping enhance your jawline without increasing sagging.

How to Prevent Jowls After Masseter Botox
If you’re getting Masseter Botox, you may wonder how to avoid unwanted sagging or jowls. Proper planning comes before treatment. The right aftercare keeps your skin looking firm and youthful.
Before Your Botox Treatment
An injector will assess a person’s facial structure to decide if Botox fits. The plan is to relax jaw muscles but not affect the skin around them.
Good injection spots are important; they keep skin firm and stop it from sagging.
After Your Botox Treatment
What you do after the procedure is just as important. Here are some easy tips to follow:
- Avoid rubbing or massaging your face for a few hours to let the Botox settle properly.
- Stick to follow-up appointments to monitor your results and adjust treatments if needed.
- Think about skin tightening treatments; they help collagen and hold your skin firm.
Long-Term Care for the Best Results
Over time, you may need small touch-ups. That is normal, and it helps maintain the shape you want.
Some people pair botulinum toxin injections with treatments such as microneedling or radiofrequency; they do this to increase collagen and to firm the skin.
With smart planning and good aftercare, you get the benefits of Masseter Botox without worrying about jowls. The process involves more than just injections; it relies on the whole approach.
Alternatives to Masseter Botox for Jowl Prevention
Masseter Botox is not the only way to keep your jawline firm and free of jowls. If you want a non-surgical method or a lasting one, consider several other options.
Non-surgical Options
If you’re not ready for surgery, these options can still help lift and tighten your lower face:
- Dermal Fillers: Adds volume where it is needed and support areas that appear hollow or droopy. Fillers lift the skin and improve jawline shape with little recovery time.
- Ultrasound or Radiofrequency (RF) Skin Tightening: The treatments increase collagen production. This helps the skin stay firm and supple. You will likely need many sessions; the results build over time.
Natural Remedies and Exercises
Some people also try facial exercises or massage to improve muscle tone and circulation; these methods do not replace clinical treatments. They may help support skin firmness when people use them consistently over time.
Additional Considerations
Healthy skin affects how it ages. Treatments such as microneedling, laser therapy, or medical-grade skincare products with retinol or peptides can improve elasticity, texture, along hydration. This makes skin hold up better against sagging and jowls.
What to Know Before Talking to a Professional About Masseter Botox
If you’re considering Masseter Botox, whether to slim your jawline or prevent jowls, getting advice from the right expert makes all the difference. The right provider can personalize your treatment so you get natural-looking results without unwanted side effects.
How to Choose the Right Injector
Not all injectors have the same training or experience. For the safest and best-looking results, look for a board-certified dermatologist or cosmetic specialist who regularly treats the masseter area.
A provider who understands facial anatomy will know exactly how much Botox to use and where to place it to help contour your jawline without affecting your smile or making jowls more noticeable.

Questions to Ask During Your Consultation
Tell your provider what you want to get before you commit. You can get a clear idea and check if the treatment suits your face.
Here are a few key things to ask:
- Am I a good candidate?
The provider should check your facial shape, how well your skin elasticity is, and how your muscles move. The provider decides if Masseter Botox works best or if another treatment is more suitable. - Will it affect my jowls?
Ask how Botox might impact the skin around your jawline. A skilled injector can explain the pros and cons based on how your face is built. - What kind of results should I expect?
Make sure you understand how long results take to show, how long they last, and what kind of maintenance is typical. - Are there other treatments that would help?
If your skin is already showing signs of sagging, combining Botox with skin-tightening treatments may give you better, longer-lasting results.
Ask About Real Patient Results
Ask for examples. Many experienced injectors show before-and-after photos or tell what other patients with similar facial features went through. This helps you grasp what to expect. You will also feel more confident about your decision.
Why Choose Becker Plastic Surgery
- Expertly Performed by Aesthetic RNs: Highly trained injectors administer all Masseter Botox treatments. Samantha Berry, RN, Brooke Carrero, RN and Clai Araya, RN, are among these injectors; they specialize in facial contouring.
- Supported by Board-Certified Facial Plastic Surgeons: The injectable team is backed by top surgeons like Dr. Nicole Schrader, Dr. Joanna Kam, Dr. Kirk Lozada, Dr. Alisa Yamasaki, and Dr. Anni Wong, all with deep expertise in facial anatomy.
- Personalized, Honest Care: Experts tailor treatments for each patient’s facial structure; they talk openly about outcomes and risks a patient might expect.
- Convenient Locations in PA and NJ: Becker Plastic Surgery treats people from Philadelphia, Yardley, and Princeton. This makes expert care available across the region.
Ready to Try Masseter Botox? Talk to an Expert First
If you consider Botox but worry about jowls or other side effects, speak with experts. A talk with an experienced injector about the good and the bad helps you decide what is best for you.
We advise you to schedule a meeting with Becker Plastic Surgery; we offer advice that suits your needs. Our team possesses much knowledge in this field – we will help you understand your treatment choices.