Will Jaw Botox Make My Face Sag?

This is one of the most common questions asked during consultations by those considering jaw Botox.

‘Will my skin sag if I get Botox?’

To give you the conclusion first,

👉 in most cases, Botox itself does not cause sagging.

However, in certain situations, it might look as though it has sagged.

The Mechanism of Jaw Botox

Jaw Botox is a procedure that reduces the strength of the jaw muscle, the **masseter muscle**,

to soften the jawline.

When the muscle shrinks,

the width of the jaw decreases,

and the face looks slimmer.

Up to this point, this is the change we expect.

However, because the face is a balanced combination of muscle, fat, skin, and ligaments,

changes in the jaw muscle can affect your overall impression.

Why It Might Look Like Sagging

In reality, it is often a change in facial proportions rather than actual sagging.

1️⃣ An optical illusion caused by the reduced facial width

When the masseter muscle shrinks,

the horizontal width of the face decreases,

which relatively emphasizes the vertical length.

Because of this, some people feel that ‘the face looks elongated or saggy.’

But the skin hasn't actually sagged.

2️⃣ Revealing an existing lack of volume

In a face with developed masseter muscles, the muscle sometimes acts as a support for the side cheeks.

If the muscle is reduced with Botox,

shadows on the side cheeks increase,

nasolabial folds become more prominent,

and marionette lines are emphasized.

Therefore, 👉 it can look as though it has sagged.

3️⃣ When skin elasticity is weak

The changes are more noticeable in the following cases:

Late 30s and older

Decreased body fat

Reduced skin elasticity

In these cases, combining it with a lifting laser or skin booster

yields much more natural results.

When Does Actual Sagging Occur?

Although medically rare, it is possible in the following situations:

1️⃣ Excessive dosage

If the muscle shrinks too much suddenly, its supporting power can decrease.

2️⃣ Faces with naturally low fat

In slim faces, sunken cheeks become more pronounced.

3️⃣ Repeated procedures

When muscle atrophy accumulates over a long period.

In These Cases, the Results Are Even More Beautiful

These are the types of faces where jaw Botox is particularly effective:

✔ Developed masseter muscles

✔ Jaws that bulge out when chewing

✔ Wide lower face

In these cases, the face actually looks more refined and contoured.

How to Prevent Sagging

1️⃣ Check the muscle condition

Rather than just looking at the jaw size,

the thickness of the masseter muscle

and chewing habits must be checked.

2️⃣ Appropriate dosage

It is not about getting a large amount,

👉 but getting the right dosage for your face.

3️⃣ Combine with lifting if necessary

If skin elasticity is weak,

HIFU,

radiofrequency lifting,

or skin boosters can be combined for a much more natural look.

Key Takeaways

Actual skin sagging after jaw Botox is rare,

and in most cases, it is due to:

✔ Changes in facial proportions

✔ Existing lack of volume

✔ The effect of skin elasticity

making it look as though it has sagged.

Therefore, the important thing is

👉 not just a procedure to reduce the square jaw,

but looking at the overall balance of the face.