How Many Units of Botox for Masseter Tox?

By Pinch Med Spa Staff

October 8, 2023

Masseter Tox, also known as jawline slimming, involves using Botox to reduce the size of the masseter muscles for a more contoured jawline. In this post, we’ll discuss the typical number of units needed for masseter tox and provide an overview of the treatment process.

What Is Masseter Tox?

Masseter tox involves injecting Botox into the masseter muscles on either side of the jaw. This reduces muscle size and activity, resulting in a slimmer, more defined jawline. For more information, check out our complete guide to masseter reduction.

Masseter Tox requires 30 to 40 units per side

How Botox for Masseter Tox Works

Botox works by relaxing the masseter muscles, which reduces their size and strength. This results in a slimmer appearance and can also alleviate symptoms of teeth grinding or TMJ disorders. You can read more in our complete Masseter Tox guide.

Recommended Units of Botox for Masseter Tox

For masseter reduction, the recommended amount of Botox typically ranges from 30 to 40 units per side. The exact number of units needed can vary based on individual needs and muscle size. Read more about Masseter Tox for TMJ and Jawline slimming.

What About Xeomin Units for Masseter Tox?

Both Botox® and Xeomin® can effectively achieve masseter reduction, utilizing botulinum toxin type A. At Pinch, we often use Xeomin for its purity and effectiveness. The unit requirements for Botox and Xeomin are generally similar.

Factors Influencing the Number of Units

  • Muscle Size: Larger masseter muscles may require more units.
  • Desired Contour: The level of slimming you want to achieve can determine the number of units.
  • Individual Response: Each person’s response to Botox or Xeomin can influence the required dosage.

What to Expect During Your Treatment


Your treatment will begin with a consultation with a skilled medical professional, such as a nurse practitioner, who will assess your masseter muscles and determine the appropriate number of units needed for your treatment.

The Injection Process

The injection process for masseter reduction is straightforward and involves minimal discomfort. A fine needle is used to inject Botox into the masseter muscles. The procedure typically takes only a few minutes.

Post-Treatment Care

After the treatment, you may experience mild side effects such as redness, swelling, or bruising around the injection sites. These effects are usually short-lived. Following the aftercare instructions provided by your practitioner is crucial for the best results.

Results and Longevity

When to Expect Results

You can expect to see results from your Botox treatment for masseter reduction within 2 to 4 weeks, with full effects visible after 6 weeks. Your jawline will appear slimmer and more contoured.

How Long Do Results Last?

The effects of Botox for masseter reduction typically last between 4 to 6 months. Regular follow-up treatments will help maintain the results.

Cost of Botox or Xeomin for Masseter Tox

The cost of Botox or Xeomin for masseter reduction depends on the number of units and the provider’s rates. Generally, Botox and Xeomin cost between $12 to $15 per unit. Here’s a cost breakdown based on the recommended units:

  • Cost for 30 units per side: $360 to $450 per side
  • Cost for 40 units per side: $480 to $600 per side

Factors Affecting Cost

  • Provider's Expertise: Highly experienced practitioners may charge more.
  • Geographic Location: Treatment costs can vary based on the region.
  • Botox vs. Xeomin: Brand name recognition can influence the cost.

Is Botox for Masseter Tox Right for You?

Botox is an FDA-approved treatment suitable for most individuals looking to reduce the size of their masseter muscles and achieve a slimmer jawline. A detailed consultation with a qualified provider will help determine if it’s the right option for you, especially if you have any underlying health conditions or are on certain medications.

Next Steps

If jawline slimming is your goal, Botox for masseter reduction offers a quick and effective solution. With the typical requirement of 30 to 40 units per side, the treatment is efficient with minimal downtime. For a convenient and professional at-home experience, consider booking with Pinch. Our nurse practitioners will visit your home, ensuring you receive the best care in a comfortable setting.

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