When you look at your side profile in photos, you might notice that your chin recedes slightly, prompting you to look into consultations. While searching, titles like "chin filler" and "jaw Botox" often pop up together, leaving many confused about which treatment is right for their face.

To put it simply, even if the concern is the same—a "short chin"—whether you should go for filler or Botox depends entirely on the root cause. If your chin bone itself is short, making your profile look receded, filler is often the ideal solution. On the other hand, if a developed masseter muscle makes your jawline look square, causing your chin to appear relatively buried, Botox is usually the way to go.

Two different causes are hidden behind "a short chin"

When looking at your side profile, there is an imaginary line connecting the tip of the nose, the lips, and the tip of the chin (often called the E-line). If the chin sits too far behind this line, the side profile can look weak, and this "shortness" stems from two main causes.

First is when the chin bone itself lacks projection. This is typical for individuals whose chin looks round and short even from the front. Second is when the masseter muscle* or the flesh on the sides of the jaw is highly developed, making the jawline look square and consequently burying the chin. This is common to those whose jawline looks sharp from the front, but the chin appears weak from the side.

Masseter muscle*: The chewing muscle that starts below the cheekbone and runs down the side of the jaw. When developed, it makes the jaw look square, and its volume can be reduced with Botox.

For a short chin bone, we start sculpting with 1cc of filler

If the chin bone lacks projection, we add volume to the front of the chin with filler to adjust the profile line. We usually start around 1cc and make additional adjustments with about 0.5cc more if needed. We avoid injecting too much at once because experience shows that 1cc is the ideal amount to sculpt the most natural line, and overfilling can make the chin look artificially long or unnatural from the front.

You can usually see the changes immediately after the filler procedure, and the final shape settles within 1 to 2 weeks. The longevity varies depending on the product, but it is generally expected to last between 8 to 18 months. The safest approach is to start conservatively with about 1cc, check your look in the mirror after about a month, and add more if needed.

If the chin is buried due to a square jaw, Botox starts showing after 1 week

When the jaw drops in a square shape due to a thick masseter muscle, trying to sculpt the chin further with filler while the front line remains square can lead to an awkward result. In this case, starting by reducing the muscle volume with jaw Botox is the correct approach. We usually start within 25 to 50 units on each side, adjusting the dose upward depending on the muscle development.

With Botox, you won't see changes immediately after the procedure; the masseter muscle will gently begin to shrink after about a week. The final shape is visible between 4 to 6 weeks, and after that, the muscle slowly returns to its original state over 3 to 6 months. It is best to start your first session with a conservative amount. Injecting too much can weaken your chewing strength or make your facial expressions look awkward, so we assess whether a touch-up is needed after 4 to 6 weeks.

We also frequently see cases where both treatments are done together

It is quite common to have a jaw that looks square from the front and a chin that looks short from the side. In this case, we refine the front line with jaw Botox first, let the shape settle for 4 to 6 weeks, and then evaluate the side profile to add chin filler. Deciding on the filler volume after seeing the Botox results helps prevent over-volumizing.

If you reverse the order and get filler first, the subsequent changes in the masseter muscle can make the originally sculpted line look awkward. Patients who choose the sequence of Botox → 4-6 weeks of observation → Filler generally end up needing fewer corrective procedures overall. The key is to take it step-by-step rather than rushing all decisions at once.

Two things to prepare for your consultation

When visiting the consultation room, please bring both front and side-profile photos. Having both angles—showing whether the front jaw is distinctly square and how far the chin projects from the side—allows us to design the perfect treatment plan. Many people tend to miss the definition of their side profile because they focus mostly on their strong front impression in the mirror.

Secondly, it is helpful to mention if you have habits like teeth grinding or jaw clenching. If the masseter muscle developed due to such habits, it can quickly thicken again even after Botox. In these cases, we might plan shorter treatment intervals or suggest a mouthguard. Please note that this article is for general information only, and choosing the right procedure for your unique facial structure should be decided in consultation with a doctor in person.

Frequently Asked Questions

Q. What kind of filler is used for the chin?

A. A firm, highly viscous hyaluronic acid filler is most commonly used. For areas like the chin that require sharp definition, a highly supportive product provides more stable results than softer alternatives. Rather than memorizing product names, it is best to discuss the viscosity and longevity with your doctor.

Q. I feel like the Botox effect isn't as strong as the first time. Is it tolerance?

A. While possible, developing resistance (tolerance) is not common. It is more likely to occur in individuals who have procedures too frequently or receive too much at once. Keeping a 3- to 6-month interval and avoiding excessive doses from the beginning is the safest path for long-term results.

Q. Once treated, how often do I need to get it done again?

A. Many people get filler touch-ups every 8 to 18 months, while jaw Botox is typically repeated every 4 to 6 months. This varies greatly from person to person depending on everyday habits like teeth grinding or how hard they chew.

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