Hongdae Seref,

"My skin feels saggy and lacks elasticity, probably because the temperature difference between day and night has been so extreme lately."

"I want a lifting treatment, but I'm really worried about the pain. Even getting anesthesia feels burdensome..."

"Whenever the season changes, my skin condition drops rapidly. Is there a way to take care of it quickly?"

During the seasonal transition in May, it is a difficult time for skin care due to the sharp temperature differences and fine dust. Skin that has been dry all winter also tends to look even more saggy, and fine lines become more noticeable.

Those who searched for Hongdae Seref were probably hoping to solve these seasonal skin concerns, while also feeling burdened by the pain or anesthesia process of conventional lifting procedures. For such people, today I would like to introduce Seref, a "lifting treatment that can be received without anesthesia."

Hello, I’m Director Jo Wonjin of Chai Clinic.

Over the past nine years of performing lifting procedures in Hongdae, I have been asked the question, "Is there a lifting treatment without pain?" very often. For those people, I would like to introduce "Seref" lifting, which was brought in for the first time in Mapo-gu.

Seref is the latest radiofrequency lifting device, launched in May 2024. It is a newly introduced device from the merger of the Korean medical device company Lutronic and the U.S. medical device company Cynosure, and it has dramatically improved the issue of "pain," which was a major drawback of existing lifting treatments.

In particular, it can be received comfortably even when the skin is sensitive, such as during a seasonal transition. I will explain why for those looking into Hongdae Seref.

The biggest feature of Seref is its differentiated cooling system.

Every time a shot is delivered into the skin tissue, cooling pulses are applied one by one to reduce pain. Just like alternating hot and cold water, cooling is delivered at the same time as thermal energy, making the pain so minimal that anesthesia is not needed.

In addition, Seref can be performed in three modes—Shallow, Middle, and Deep—using two wavelengths, 6.78 MHz and 2 MHz.

In particular, the Deep mode allows energy to penetrate much deeper than conventional radiofrequency lifting, so you can experience both the jawline-lifting changes of Ulthera and the improvement in fine lines and skin texture associated with Thermage.

And with four tips (EFFECTOR 05, 10, 40, 60), treatment can be customized for each individual.

From EFFECTOR 05 for thin skin to EFFECTOR 60 for covering a wide area, it can be applied delicately according to the skin condition during the seasonal transition.

It seems like a good lifting device, but how good is it really? Isn’t Thermage still better?

I’ll explain the advantages of Hongdae Seref with specific figures.

First, treatment time is dramatically shortened.

Because no anesthesia process is needed, the treatment is completed in 30 to 40 minutes for 600 shots. Compared with Thermage, where anesthesia alone takes 40 to 50 minutes, it is fair to say that the total treatment time is reduced by about 50%.

Second, energy delivery efficiency is excellent.

The EFFECTOR 60 tip of Seref has an area 1.5 times larger than Thermage TotalTip. So the satisfaction you get from 600 shots of Seref can be said to be on the same level as 840 shots of Thermage.

Third, it allows customized care optimized for skin during the seasonal transition.

Because the energy level can be adjusted up to 10 levels, it can be delicately performed according to the sensitized skin condition during the seasonal transition. Customized care is also possible depending on skin type and treatment area.

The maintenance period is also long, at 9 to 11 months, so if you receive it once during the seasonal transition, you can maintain satisfaction until the seasonal transition next year.

If your skin is sensitive or you do not have much time, it would be a good idea to look into Hongdae Seref, right?

Of course, no matter how good Seref lifting is, there are limits if basic seasonal skin care habits are not in place.

Adequate hydration and consistent sunscreen use are things you must keep up, right?

The biggest difference between Seref and conventional lifting is accessibility. It can be comfortably received even by those who hesitated to undergo lifting because of concerns about pain and anesthesia. But above all, what matters most is a detailed consultation process tailored to each individual’s skin condition.

As Chai Clinic’s philosophy says, "No two skins in the world are the same," seasonal skin concerns also differ from person to person. We recommend looking for a dermatology clinic that manages the entire process, from consultation to treatment design.

I hope this information is helpful for those looking into Hongdae Seref, and I’ll wrap up here.

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

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