Masseter Injections: What to Expect in the First 48 Hours
Whether you're seeking relief from jaw tension or a more contoured lower face, injectable treatments to the masseter muscles are increasingly used for both functional and aesthetic goals. While the procedure itself is usually quick, many patients feel uncertain about what comes next.
Understanding what to expect in the first 48 hours after masseter slimming injections can help ease nerves, support recovery, and ensure you get the most from your treatment.
Immediately After Treatment: What Is Normal
Once the injections are complete, the most common effects are mild and temporary. It is normal to experience:
Small, raised bumps at the injection sites
These often resemble mosquito bites and typically settle within 30 to 60 minutes.Mild redness or tenderness
Some people feel a dull ache or slight pressure in the treated area.A sensation of tightness
As the muscle begins to relax in the coming days, subtle changes may be noticed in function or movement.
Bruising is uncommon in this area but can occasionally occur. It is typically minor and fades within a few days.
What to Avoid in the First 48 Hours
To reduce the risk of complications and support a smooth recovery, it is advisable to avoid:
Strenuous exercise
Activities that raise your heart rate or blood pressure can increase swelling or discomfort.Alcohol
This can contribute to bruising and may interfere with early healing.Touching or massaging the area
Allow the product to settle naturally without applying pressure.Chewing gum or excessive jaw movement
Minimising muscle activity early on may support more predictable outcomes.Facial treatments or makeup over the area
Avoid facials, peels, or active skin care for at least 24 hours unless otherwise advised by your practitioner.
Following these precautions helps ensure the treatment remains effective and minimises the risk of irritation or displacement.
One of the most common questions is: When will I see results?
Unlike treatments aimed at smoothing fine lines, masseter slimming involves gradual changes. The muscle needs time to relax, and any visible reduction in size occurs progressively. Here’s a general timeline:
Days 1 to 3: Most people do not notice visible changes. The muscle relaxant begins working beneath the surface.
Week 1 to 2: Subtle improvements in muscle tension may be felt. Some people report relief from clenching or jaw tightness.
Week 4 to 6: Contour changes may begin to appear as the masseter reduces in bulk.
Week 8 to 12: This is often when the full result is most noticeable.
It is important to remember that results vary based on individual anatomy, metabolism, and the amount of muscle relaxant used.
A Note on Follow-Up
A follow-up appointment may be recommended to review your outcome and discuss whether any adjustments are needed. Ongoing treatment plans depend on your goals, the severity of muscle overactivity, and how long the effects last for you personally.
Support Through Every Stage
At TT Aesthetics, we understand that each person’s experience with masseter slimming is unique. From your first consultation through to post-treatment care, we provide clear, practical guidance designed to support comfort, safety, and informed decision-making.
If you have questions during your recovery or want to know what to expect beyond the 48-hour mark, we are here to assist you.
To learn more about your masseters book a consultation with a qualified expert, book TT Aesthetics.
