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Changes Before and After Ultherapy 600 Shots: Why It Can Help Improve a Double Chin

Hongdae Dermatology Skin Clinic 弘大美丽石医院 · ✦뷰티스톤의원 합정역✦ · April 2, 2026

Hello. This is Wi Young-jin. Recently, during consultations, I’ve been hearing more and more people say things like, “My face seems to be getting bigger.” “My jawline feels less de...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: Hongdae Dermatology Skin Clinic 弘大美丽石医院

Original post date: April 2, 2026

Translated at: April 19, 2026 at 1:52 PM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

Changes Before and After Ultherapy 600 Shots: Why It Can Help Improve a Double Chin image 1

Hello.

This is Wi Young-jin.

Recently, during consultations,

I’ve been hearing more and more people say things like,

“My face seems to be getting bigger.”

“My jawline feels less defined.”

These are concerns that

more and more people continue to mention.

In particular, when the double chin seems more noticeable than before,

or when the facial contours feel like they’ve collapsed,

one of the first things that comes to mind

is a lifting procedure.

Among them,

Ultherapy is drawing more attention

as a way to improve firmness without surgery.

Today,

I’ll explain why Ultherapy lifting,

which is often used to improve a double chin,

is effective,

starting from the principle

and moving through how it is applied.

Why does a double chin develop? A double chin is not simply a problem caused by increased fat.

In reality,

changes in the deeper structures of the skin also play a role.

In particular,

problems often begin as the elasticity of the SMAS fascial layer,

which supports the face, declines.

This fascial layer

supports the skin and fat layer,

but as aging progresses,

it gradually becomes looser.

In this state,

subcutaneous fat

descends downward with gravity,

and as a result,

a volume builds up under the chin,

forming a double chin.

If this process repeats,

the jawline collapses

and the facial outline appears blurred.

In other words,

a double chin forms through a combination of

reduced fascial elasticity,

the effects of gravity,

and sagging fat.

That is why simple dieting alone

is often not enough to improve it,

and an approach that lifts the deeper layers of the skin

becomes necessary. What is the principle behind Ultherapy? Changes Before and After Ultherapy 600 Shots: Why It Can Help Improve a Double Chin image 2

Ultherapy is a lifting procedure

that uses high-intensity focused ultrasound (HIFU)

to deliver energy

into the deeper layers of the skin.

Its 특징 is that

it acts directly on the internal structure,

not on the skin surface.

In particular,

it precisely delivers energy to the SMAS fascial layer,

forming thermal coagulation points

and inducing tissue contraction.

The heat delivered at this time

is around 60 to 70 degrees Celsius,

a temperature suitable for contracting tissue.

To explain this reaction simply,

it is similar to the way

an squid curls up when heated.

Inside the skin as well,

the area receiving the thermal stimulus

contracts immediately,

creating a pulling-up effect.

This is the core of Ultherapy lifting.

In addition, after the procedure,

the collagen regeneration process is activated,

so over time,

you can expect a dual effect:

improved skin firmness and density.

The fact that these changes can be induced

without an incision or threads

is the advantage of non-surgical lifting. What does Ultherapy 600 shots mean? Changes Before and After Ultherapy 600 Shots: Why It Can Help Improve a Double Chin image 3

In Ultherapy,

600 shots is not just a number,

but a design unit

for lifting the entire face in a balanced way.

In other words,

rather than focusing on one area,

it is a full-face lifting concept

that is performed with the overall facial structure in mind.

Before the procedure,

ultrasound imaging is used

to check the thickness of the skin and the depth of the fat layer,

and a plan for energy delivery

is then designed accordingly.

This process is important because

even on the same face,

each area differs in thickness and structure.

For example,

thin areas are treated delicately without excessive stimulation,

while areas that need firmness

are approached more deeply and broadly.

The depth of the tips used

is also applied differently.

A depth of 4.5 mm

targets the SMAS fascial layer,

and a depth of 3.0 mm

mainly acts on the area beneath the dermis.

Through this layered approach,

areas where sagging is more likely to appear,

such as the jawline and beneath the cheeks,

can be improved more intensively.

The important point here is

a design that lifts naturally n without hollowing the cheeks. How long does the Ultherapy effect last? Changes Before and After Ultherapy 600 Shots: Why It Can Help Improve a Double Chin image 4

With Ultherapy,

you can feel a change even after a single session.

Usually,

the effects last for about 6 months to 1 year,

and in particular, when performed with a sufficient number of shots,

collagen production continues

and gradual improvement follows.

Rather than immediately after the procedure,

many people notice the most visible changes

between 2 and 3 months afterward.

Of course, the results

may vary depending on the individual’s skin condition, firmness level,

lifestyle habits, and other factors.

In general,

managing it about once a year

can help maintain a natural lifting effect. Who is it suitable for? Ultherapy is

not just a simple firmness treatment,

but a procedure that induces change

deep within the skin’s structure.

Therefore,

it can be a suitable option for people who are concerned about a double chin or a sagging jawline,

people whose V-line has become less defined,

those who want a natural lift without surgery,

and those who want to continue consistent firmness care

as part of their routine.

Changes in facial contours

are often not just a surface issue,

but begin with changes in the deeper structures of the skin.

Therefore,

rather than only caring for the surface,

a deeper approach that also considers the lower layers is needed.

If you’ve recently looked in the mirror

and felt that your jawline has become less defined,

you may want to check whether it is not simply a change in weight,

but a structural change.

Thank you for reading.

This was Wi Young-jin.

Changes Before and After Ultherapy 600 Shots: Why It Can Help Improve a Double Chin image 5

Changes Before and After Ultherapy 600 Shots: Why It Can Help Improve a Double Chin image 6

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