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16 Years of Unmatched Safety and Excellence. ReYeonK’s Uncompromising Standard for Beauty and Care.
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ReYeonK Clinic

Dermatology & Aesthetic Surgery

  • SPECIAL
  • LIFTING
  • PETIT
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  • DR.'S NOTE
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ReYeonK Clinic

SPECIAL

  • EyeThera
  • Density
  • GOURI Skin
  • Sunsak Fat Dissolving
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LIFTING

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PETIT

  • Premium Filler
  • Volume Design
  • Botox
  • Face Contouring Design
  • Face Contouring

SKIN CARE

  • Stem Cell Regen
  • Skin Booster
  • Pore Care
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  • Pigmentation
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ABOUT

  • About Us (16 Years Safety)
  • Media & Press
  • Medical Team
  • Location
  • Before & After

DR.'S NOTE

  • Consultation Notes
  • Video Q&A

ReYeonK Clinic 2026

ReYeonK Clinic | Representatives: Kim Hyunsu · Lee Doochan

64 ReYeonK Bldg, Eonju-ro 172-gil, Gangnam-gu, Seoul

TEL : 02-558-5581

Business Registration Number : 220-09-57018

Contact & booking

ReYeonK Clinic (리연케이의원) — 64 Eonju-ro 172-gil, Gangnam-gu, Seoul; 5 minutes’ walk from Exit 5, Apgujeong Rodeo Station

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VIDEO Q&A

Video Q&A

Short videos in which Dr. Lee Doochan answers common consultation questions (in Korean). Tap a video to open the doctor's Instagram (@doclee_rk).

  • Why do doctors pull the skin with their hand during a lifting treatment?

    2026.10.13

    The doctor explains why he treats while holding the brow or jawline pulled with his hand. It follows the principle that lifting devices such as InMode work when energy is delivered while the tissue is pulled and reshaped.

    Related treatment: InMode →

  • What treatment helps with droopy eyes and eyelid wrinkles that come with age?

    2026.10.09

    The doctor talks about eye-area lifting suited to people around their 60s who are bothered by eyelid wrinkles and drooping eyes that come with age.

  • How often should I get EyeThera?

    2026.10.07

    Answers a question about how often to have EyeThera. When having eye-area Virtue RF alone, an interval of a month or more is recommended; for EyeThera done together with Ultherapy, about every 6 months is recommended. Results vary from person to person.

    Related treatment: EyeThera →

  • How much of the area around the eyes does EyeThera cover?

    2026.10.03

    Shows EyeThera being applied evenly over the entire eye area and around the brows. The doctor explains that the brow area needs to be treated too in order to expect an eye-area lifting effect.

    Related treatment: EyeThera →

  • What causes stretch marks and how are they treated?

    2026.10.01

    Explains why stretch marks form and how they are treated. When the skin is overstretched, collagen in that area becomes deficient and the area looks sunken. Treatment combines carboxy (gas) and filling-material injections with ONDA, which stimulates collagen in the deeper layers.

    Related treatment: ONDA →

  • Why do I have multiple eyelid creases, and can it be improved without surgery?

    2026.09.28

    Explains that multiple eyelid creases often appear as the eyelid sags. A treatment that lifts the upper area slightly can be expected to improve it.

  • My eyelids droop so much it's hard to open my eyes, but I'm hesitant about surgery. What treatment can I get?

    2026.09.27

    Explains the treatment combination first recommended for people whose eyelids droop so much that opening their eyes is difficult but who are hesitant about surgery (forehead lift). About 200 shots of Ultherapy are combined with eye-area Virtue RF and eye-area skin Botox.

    Related treatment: Ultherapy →

  • How can EyeThera improve eye wrinkles and multiple eyelid creases in my 30s?

    2026.09.26

    How EyeThera is used for people in their 30s who have developed multiple eyelid creases and whose eye area looks older. The upper area is lifted with lifting, and fine lines under the eyes are smoothed with skin Botox. Patients are told in advance that if Botox reaches the aegyo-sal (under-eye fat pad) area, the aegyo-sal may look fainter for about 2 weeks before returning.

    Related treatment: EyeThera →

  • How does ONDA work on fat?

    2026.09.23

    Demonstrates on pork how ONDA (microwave) acts on fat. As energy is delivered at a depth of about 7mm, the fat layer can be seen cooking.

    Related treatment: ONDA →

  • Why is Ultherapy so expensive?

    2026.09.22

    Discusses why Ultherapy is priced high. Ultherapy is a device where each shot uses up cartridge cost, so there is a cost per shot.

    Related treatment: Ultherapy →

  • Is eye-area Ultherapy (eye Ultherapy) dangerous for the eyes?

    2026.09.19

    Answers whether eye-area Ultherapy is dangerous for the eyes. The doctor explains that he treats only up to the area above the brow bone, where bone provides support, and does not go below onto the eyelid.

    Related treatment: EyeThera →

  • How does eye-area Ultherapy work when my eyes have drooped more with age?

    2026.09.19

    Explains eye-area Ultherapy for people whose eyes droop with age or whose thick upper eyelids make their eyes look half-closed. Energy delivered to the fascia layer (SMAS) makes the tissue contract, raising the brows so the eyes look more open.

    Related treatment: Ultherapy →

  • Is more filler always better?

    2026.09.18

    The doctor shares his view that, rather than the excessive filler that is trendy these days, what matters is putting in only as much as is needed for those who need it. He points out that the problem is that people who don't need filler get it more often.

    Related treatment: Filler →

  • Where should filler go for a peanut-shaped face with prominent cheekbones?

    2026.09.10

    Explains a filler design for a peanut-shaped face with prominent cheekbones. Small amounts fill the hollow shadows above and below the cheekbones and at the side cheeks, the under-eye hollows (the so-called Indian line), and the nasolabial area, while less goes into temples that are not very hollow. Amounts on each side are adjusted for asymmetry.

    Related treatment: Filler →

  • What should I be careful about after ear filler?

    2026.09.07

    Answers a question about precautions after ear filler. There are almost no special restrictions, but it may hurt when touched for about a week, and once the pain is gone, self-molding to shape the ear is needed.

    Related treatment: Filler →

  • What problems can too much filler cause?

    2026.09.06

    The doctor shares his principle that putting in too much filler is not good for any area and can actually look unnatural.

    Related treatment: Filler →

  • When can I exercise after collarbone or shoulder filler?

    2026.09.06

    Answers when exercise is possible after collarbone or shoulder filler. When a large volume has been injected, the filler can shift, so it is best to be careful with exercises that involve a lot of shoulder rotation.

    Related treatment: Filler →

  • Is it better to get repeated injection treatments for an area that filler could fix?

    2026.09.06

    The doctor shares his view that going round and round with repeated injection treatments for areas like under the eyes, which filler can address, is a waste.

    Related treatment: Filler →

  • Can a treatment alone create ab lines?

    2026.09.03

    Explains how body ONDA is used to create abdominal lines (vertical '11' abs, love handles). Putting more energy into specific areas reduces fat and creates lines; the abdomen usually takes about 150,000 joules. It is best done after losing some weight.

    Related treatment: ONDA →

  • Why do doctors always wear gloves during treatments?

    2026.09.01

    Explains why gloves are always worn during treatment. It protects the medical staff and also prevents contamination of the patient's face, and the doctor says this is especially important for treatments that create channels in the skin, such as microneedle RF.

  • What is Density and how is it similar to Thermage?

    2026.08.31

    Explains what kind of device Density is. Like Thermage, it is a radiofrequency (RF) lifting device that thickens the skin from the upper to the lower dermis to improve elasticity. Many people who find Thermage's price a burden choose it, hoping for an effect in a similar direction.

    Related treatment: Thermage FLX →

  • Is there any risk of eye injury during eye-area lifting?

    2026.08.30

    To the question of whether there is a risk of eye injury during eye-area treatment, the doctor answers that there is no need to worry because he treats only up to the area supported by bone.

  • Why is it good to add skin Botox when I'm getting a treatment under sedation?

    2026.08.26

    Explains why skin Botox is recommended together when a treatment is done under sedation. Under sedation, skin Botox, which stings, can be received comfortably.

    Related treatment: Botox →

  • Can freckles (pigmentation) and redness be treated on the same day?

    2026.08.25

    Explains that treating freckles (pigmentation) and redness on the same area on the same day puts in a lot of energy and can cause irritation. On a pigment treatment day it is best to have only one, and if both are done, the pigment laser goes first.

  • Where should filler go if my face looks wide and flat?

    2026.08.24

    Explains that when the face looks wide and lacks dimension, adding volume to the center of the face is key. Filler is placed along the central line, such as the forehead, nose, lips and chin, to create dimension.

    Related treatment: Filler →

  • What is the Gouri skin booster?

    2026.08.23

    Explains the Gouri skin booster. It is made from PCL, the ingredient used in dissolving threads, formulated as a liquid from the start. With small particles it spreads evenly in the skin and is a biostimulator that helps collagen production.

    Related treatment: Skin Booster →

  • What effects can I expect from the skin boosters popular in Gangnam?

    2026.08.21

    Discusses the effects of the skin boosters many people look for in Gangnam. Improvement in skin tone (whitening), pores, and hydration and moisture can all be expected together.

    Related treatment: Skin Booster →

  • Can laser hair removal be used to shape my eyebrows?

    2026.08.18

    Explains that eyebrow shaping can also be done with laser hair removal. Only the needed parts, such as above the brow, are treated to set the line according to the desired shape.

    Related treatment: Hair Removal →

  • Why is facial hair removal good for women too?

    2026.08.17

    Discusses why facial hair removal is good for women too. A lot of facial peach fuzz makes the skin tone look darker; removing it brightens the tone and also reduces concerns about hair above the lip.

  • At what age should I start radiofrequency (RF) lifting?

    2026.08.15

    Answers at what age RF lifting is good to start. It is usually recommended from the late 30s, when fine lines and sagging start to be noticeable, though device companies sometimes recommend it from the early 30s.

  • Why use Restylane Kysse for lip filler?

    2026.08.14

    The doctor explains why he uses only Restylane Kysse for lip filler. It comes from his experience: he has tried a wide range of fillers on the market, and Kysse suited the lips best.

    Related treatment: Filler →

  • Why stick with Restylane for lip filler?

    2026.08.13

    Explains why Restylane is the choice for lip filler. It holds shape well, lasts relatively long, and settles well after injection, so the shape comes out nicely.

    Related treatment: Filler →

  • When should I get jaw Botox before a lifting treatment?

    2026.08.13

    Explains why people with large jaw muscles are recommended to get jaw Botox before lifting. When the muscle is large, the facial contour does not lift well even with lifting.

    Related treatment: Botox →

  • What is checked first when designing ear filler?

    2026.08.10

    Explains what is checked first in ear filler design. Some people want larger earlobes for face-reading (physiognomy) reasons, and others want the ears to stand out to create the illusion of a relatively smaller face, so the design follows the desired direction.

    Related treatment: Filler →

  • Why do my eyes look unnatural after skin Botox?

    2026.08.08

    Explains the cause in response to a question about eyes looking unnatural after skin Botox. Skin Botox must be placed shallowly in the skin layer; if it goes deep into the muscle, that side effect can occur.

    Related treatment: Botox →

  • How is lip filler designed for someone in their 60s?

    2026.08.06

    A consultation for lip filler for someone in their 60s. For lips that have lost volume, become wrinkled and have a blurred outline, the upper line is defined and lifted, volume is added to the lower lip, and the size difference between left and right is balanced.

    Related treatment: Filler →

  • Can a thread lift improve both sagging and hollow cheeks?

    2026.08.04

    Explains how a Thread Lift alone can improve both sagging and hollowness in older patients. The threads lift and gather sagging tissue while also addressing cheek hollows and the position of deep cheek fat.

    Related treatment: Thread Lift →

  • Does a thread lift hurt a lot?

    2026.08.03

    An honest answer to whether a Thread Lift hurts a lot. Because threads are inserted, it cannot be painless, but it does not take long, and with local anesthesia at several points it can be done without much pain. Because the threads are anchored near the temples, a pulling sensation may be felt for about a week.

    Related treatment: Thread Lift →

  • Can lifting raise droopy eyelids? When will I see results?

    2026.08.02

    Explains eye-area lifting recommended for people whose eyelids have come down with age, making it uncomfortable to open their eyes. The eyelids can be expected to rise slightly, making the eyes easier to open; with lifting such as Ultherapy and Thermage, changes usually start to show after 3 weeks to a month. Results vary from person to person.

    Related treatment: Ultherapy →

  • Can shoulder filler give me square, straight shoulders?

    2026.08.01

    Explains how shoulder filler refines a rounded shoulder line into a slightly more angular, square-shoulder look. The shape comes out well in body types where the trapezius is not developed and the shoulder bone is somewhat visible.

    Related treatment: Filler →

  • Can ear filler make my face look smaller?

    2026.07.30

    Shows an ear filler treatment that makes the ears stand out so the face looks relatively smaller. It also shows the fixation tape applied after treatment to help the ear shape hold.

    Related treatment: Filler →

  • Who is body ONDA for?

    2026.07.29

    Explains why many people look for body ONDA before summer. It is for people who want to firm up arms, legs and abdomen that have lost elasticity and sag even without much fat, or areas made uneven by cellulite; it is sometimes combined with fat-dissolving injections. There is a change even after one session, but consistent care is recommended.

    Related treatment: ONDA →

  • Who is collarbone filler suitable for, and who isn't it suitable for?

    2026.07.28

    Explains when collarbone filler suits and when it doesn't. If there is so much fat that the collarbone is not visible at all, losing weight first is recommended; for people whose collarbones are somewhat visible, adding just a little makes the line more defined.

    Related treatment: Filler →

  • Do lifting treatments use only the set number of shots?

    2026.07.27

    Explains that the lifting shot counts each clinic sets should be seen as a 'minimum shot count.' Face size, skin and areas of concern differ from person to person, so the doctor's principle is to try to be more thorough than the set number.

  • What do lifting results depend on?

    2026.07.26

    The doctor shares his view that lifting is proportional to care and effort. He explains that doing lifting treatments, including Virtue RF, as thoroughly as possible while pulling the skin gave better results.

    Related treatment: Virtue RF →

  • What filler is used for the collarbones and shoulders?

    2026.07.23

    Explains what product is used for collarbone and shoulder filler. The body is an area where the shape needs to be held firmly, so using the firmest type of filler tends to give a nicer shape.

    Related treatment: Filler →

  • Where exactly should ear filler be injected?

    2026.07.22

    Explains why the injection position matters for ear filler. The ear needs to be supported deeply from the lower back side so it stands out; injecting only on the surface just pushes with volume and is less effective.

    Related treatment: Filler →

  • How many joules (energy) does body ONDA use?

    2026.07.20

    An example of deciding the energy amount (joules) for body ONDA. It shows a case using about 350,000 joules when treating the arms, abdomen and thighs together. It varies by area and body type.

    Related treatment: ONDA →

  • How many cc of filler go into ear filler?

    2026.07.18

    Answers how many cc go into ear filler. The doctor usually uses about 2cc per side and explains that excessive amounts, like 10cc per side, are not necessary.

    Related treatment: Filler →

  • Do slim people get body ONDA too?

    2026.07.17

    Explains why slim body types also get body ONDA. It is for elasticity problems where the skin sags rather than for fat, and care at intervals of one to two months helps with maintenance. It gets hot during treatment and may hurt slightly.

    Related treatment: ONDA →

  • Why is ear filler also injected into the rim of the ear?

    2026.07.16

    Explains how ear filler is used to make the rim of the ear stand out as well. After injecting from behind the ear to make it stand out, injecting along the outline of the rim to open it a little more makes the ear stand out more clearly.

    Related treatment: Filler →

  • Can I get body ONDA and ear filler on the same day?

    2026.07.15

    Explains a treatment plan that combines body ONDA (upper arms, accessory breast, abdomen, flanks, inner thighs) and ear filler in one day. Ear filler is done with numbing cream plus injected anesthesia, and ONDA feels hot but is tolerable.

    Related treatment: ONDA →

  • Which areas are good to keep getting Botox in regularly?

    2026.07.14

    A conversation about Botox being an easy, cost-effective way to maintain the face. The doctor's view is that Botox for frown lines, crow's feet and a square jaw is worth continuing regularly even as you get older.

    Related treatment: Botox →

  • How long does ear filler last?

    2026.07.14

    Explains how long ear filler lasts. Filler tends to wear off a bit faster in areas that move a lot, such as the nasolabial folds and lips, but the ear is an area that doesn't move, so the filler's original duration can be expected. Results vary from person to person.

    Related treatment: Filler →

  • How is overfilled ear filler corrected?

    2026.07.13

    Explains how to correct overfilled ear filler. Excess filler has to be dissolved, and the basic principle is not to overfill any area. The amounts the doctor recommends are about 3cc for the ears and about 4cc for the shoulders.

    Related treatment: Filler →

  • What's the difference between filler and the Gouri skin booster?

    2026.07.12

    Explains the difference between filler and the Gouri skin booster. Filler is a product with hyaluronic acid particles bound together, suited to filling hollows with volume, while Gouri is a liquid PCL formulation that spreads widely and is used for skin tightening and anti-aging. Gouri can also be placed in shallow skin layers.

    Related treatment: Filler →

  • How can I brighten my skin tone?

    2026.07.10

    Explains how to brighten skin tone. The skin color of areas that get less sun can be seen as the limit of how bright the face can become; occasional toning along with consistent sunscreen and moisturizing is recommended.

  • Does ear filler last longer than filler in other areas?

    2026.07.09

    Explains how long ear filler lasts. Filler tends to wear off a bit faster in areas that move a lot, but the ear is an area that doesn't move, so the filler's original duration can be expected. Results vary from person to person.

    Related treatment: Filler →

  • What is microneedle RF (Virtue RF)?

    2026.07.07

    Shows what microneedle RF (Virtue RF) is. Needles go in to a depth of about 1.5mm and radiofrequency is emitted from the tips; there may be slight bleeding during treatment.

    Related treatment: Virtue RF →

  • Is there a way to boost the effect of a skin booster?

    2026.07.06

    Explains how to boost the effect of a skin booster. Before the skin booster, the doctor first gives the skin fine stimulation with a laser or microneedle RF, then injects a skin booster (Gouri) that helps it recover.

    Related treatment: Skin Booster →

  • How should I care for my skin after lentigo (age spot) removal?

    2026.07.05

    Explains aftercare following lentigo removal. Tiny black scabs form around the next day; it is important not to rub them off when washing your face or removing makeup and to leave them until they fall off naturally.

  • At what age should I start skin boosters?

    2026.07.03

    Answers when it is good to start skin boosters. The doctor's view is that it is fine to start Gouri or other skin boosters from the early 30s, and that they become more needed with age.

    Related treatment: Skin Booster →

  • Can lifting raise sagging upper eyelids?

    2026.07.02

    Shows a lifting treatment that raises the upper eyelid area for someone whose sagging upper eyelids make their eyes look half-closed.

  • Why are moles and age spots (lentigines) treated with different lasers?

    2026.06.30

    Explains why different lasers are used for mole removal and lentigo removal. Each laser has its own wavelength, dividing them into ones that shave off only the surface and ones that go deep to break up pigment (such as PicoSure), and the laser is chosen to fit the purpose.

  • Are there areas where filler is dangerous to inject?

    2026.06.29

    Answers whether there are areas where filler is dangerous. The doctor explains that when treatment is done safely with a cannula that avoids blood vessels, the skill of the person performing it matters more than the area itself.

    Related treatment: Filler →

  • How do you reduce enlarged salivary glands that make the area under the jaw look wide?

    2026.06.28

    Explains enlarged salivary glands (submandibular glands) as one cause of a wide-looking facial contour. They can enlarge from alcohol, late-night eating, overeating and so on, and the doctor explains reducing their size with Botox.

    Related treatment: Botox →

  • Can droopy eyelids be lifted with a non-surgical treatment?

    2026.06.26

    A consultation about lifting droopy eyelids with a treatment. The doctor explains that when the eyelids have come down a little, they can be raised with lifting.

  • Where should I start filling when my face has hollows and sagging?

    2026.06.25

    A consultation in which the doctor looks at the whole face and points out areas of hollowness and sagging. After checking the forehead, cheek hollows, marionette lines and deep cheek sagging, he recommends starting with the under-eye hollows, which are most noticeable. The principle is not to overfill.

  • If I'm worried about filler side effects, can I consider Gouri instead?

    2026.06.24

    Explains Gouri to people who are worried about filler. Filler is a product that binds particles together to create volume, while Gouri is a liquid formulation without much volume that spreads widely, so there is less concern about lumps (nodules).

    Related treatment: Filler →

  • Do skin boosters hurt, and will I swell?

    2026.06.23

    Answers people worried about pain and swelling from skin boosters. Numbing cream is applied for about 10–15 minutes and the booster is injected with a device to reduce pain; if large blood vessels are not touched, bruising is rare, and needle marks fade within an hour or two. Results vary from person to person.

    Related treatment: Skin Booster →

  • How long does a Gouri skin booster treatment take?

    2026.06.23

    A story from after ReYeonK Clinic started offering the Gouri skin booster. Numbing cream is applied for about 20 minutes before treatment, and the treatment itself takes about 15 minutes.

    Related treatment: Skin Booster →

  • How are hollow cheeks filled with filler?

    2026.06.22

    A consultation about filling hollow side cheeks with a small amount of filler. For someone worried because it is their first filler, the doctor explains that the treatment finishes quickly and does not hurt much.

    Related treatment: Filler →

  • If my jaw muscles are asymmetrical, should each side get a different dose of jaw Botox?

    2026.06.20

    Answers whether the same dose of square-jaw Botox is fine when the jaw muscles are asymmetrical. Square-jaw Botox is usually given about three times as a process of reducing the muscle as much as possible, so there is no need to use different doses on each side from the start.

    Related treatment: Botox →

  • What changes can I expect after a Gouri skin booster?

    2026.06.18

    The doctor talks about the changes noticed after Gouri skin booster treatment. Patients often mention improved skin texture when touched, tightening of the side cheeks, and changes in the pores beside the nose; he recommends it for people trying a skin clinic treatment for the first time. Results vary from person to person.

    Related treatment: Skin Booster →