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Hongdae Ultherapy? Serf? If You’re Unsure Which Treatment to Choose

차이의원 · 아름다움의 차이, 차이의원입니다. · March 13, 2025

This post was written solely to provide information. Please note that it is not intended to promote this clinic. ​ Results may vary depending on each individual’s skin condition, s...

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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: 차이의원

Original post date: March 13, 2025

Translated at: August 17, 2026 at 4:11 PM

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

This post was written solely to provide information.

Please note that it is not intended to promote this clinic.

Results may vary depending on each individual’s skin condition, so we recommend having a thorough consultation with a medical professional.

Hongdae Ultherapy? Serf? If You’re Unsure Which Treatment to Choose image 1

“Why has my skin become so saggy lately? My face doesn’t look as defined as it used to…”

“Ultherapy? Serf? Which treatment would be right for my skin?”

If you have searched for Hongdae Ultherapy, you may have these concerns. Above all, there are so many types of lifting treatments, including Ultherapy, Thermage, and Serf, that it can be confusing. It may not be easy to organize which device is best suited for which concern.

Today, during this dry season, I would like to briefly explain Ultherapy for those looking into Hongdae Ultherapy and also introduce the features of other lifting devices.

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Hello, I am Wonjin Jo, director of Chai Clinic.

I have been practicing cosmetic dermatology in Hongdae for nine years, counting by calendar years. Ultherapy is a lifting device that has been available for more than 10 years. In that sense, it has more experience than I do.

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“If it is an old device, doesn’t that mean it is outdated? Is it really good for the skin?”

Of course, it is understandable to think that way.

However, the fact that so many people still seek it out after more than 10 years itself demonstrates that it offers many advantages as a treatment.

So what kind of device is Ultherapy, and why has it remained popular for so long?

Ultherapy is a high-intensity focused ultrasound device.

It is a thermal coagulation device that targets the SMAS layer, also known as the fascial layer.

It applies heat to the fascial layer using ultrasound, causing it to contract.

To explain it simply, you can think of it as being similar to the principle of a “magnifying glass.” When ultrasound is focused on a specific point, the temperature rises, right? The temperature is raised to approximately 60–70°C, and this thermal energy contracts the SMAS layer.

The lifting effect occurs as the SMAS layer contracts.

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The first advantage of Ultherapy is that it can make a significant contribution to creating a more attractive facial contour.

You may feel satisfied as your facial shape becomes more defined and your jawline becomes more pronounced. For this reason, Ultherapy is often recommended for people concerned about the area beneath the chin or a double chin.

Second, it has an imaging device, allowing the procedure to be performed while viewing the inside of the skin in real time using DeepSee technology.

This makes it possible to deliver thermal energy evenly and consistently. It also allows the patient and practitioner to communicate with each other and monitor the progress of the procedure as it is performed.

Third, Ultherapy can be applied at various depths of the skin, providing a wide range of options for treatment design.

The 4.5 mm depth, which targets the SMAS layer mentioned earlier, is usually the primary target. However, depending on the individual’s skin condition, it can also be applied at depths of 1.5 mm and 3.0 mm.

So you should visit a dermatology clinic with extensive experience and the ability to skillfully design the procedure, right? It is also important to choose a dermatology clinic that can understand the overall context of the treatment, from consultation through treatment design.

Then what are the disadvantages of Ultherapy?

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The first is pain.

Since the procedure applies heat to the fascial layer to make it contract, some pain is unavoidable. In particular, because the fascial layer contains sensory nerves, it is difficult to say that the procedure is completely painless.

However, it is also important to note that the pain is generally manageable because a topical anesthetic is applied before the procedure.

The second disadvantage is that the procedure takes a considerable amount of time. This is because, as mentioned earlier, an anesthesia process is required. The need for anesthesia means that it takes relatively more time than procedures that do not require anesthesia.

We should also look at possible side effects.

Because the procedure uses high thermal energy, side effects such as cheek hollowing, burns, erythema, and swelling may occur. These effects can appear when excessive heat is delivered to the SMAS layer.

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When it comes to reducing these disadvantages and side effects of Ultherapy, the practitioner’s skill is more important than anything else. The degree of side effects can vary significantly depending on the medical professional’s capabilities.

If you are looking into Hongdae Ultherapy, we recommend choosing a dermatology clinic with extensive experience performing the procedure.

Although there is no doubt that Ultherapy is a lifting device that has remained popular for more than 10 years, some newer lifting devices have been developed to address its disadvantages.

One such option is Serf lifting. It causes considerably less pain, so anesthesia is not required, and it also has its own cooling system.

For those deciding between Ultherapy and Serf, we recommend checking your own skin condition first and foremost.

This is because newer equipment is not necessarily better for everyone’s skin, and older equipment is not necessarily harmful to everyone’s skin.

We hope this information is helpful to those who have searched for Hongdae Ultherapy.

This was Chai Clinic, customizing your natural beauty. Thank you.

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