Gangnam
Dr. Yoon-Gon Ryu
Aesthetic Medicine Specialist
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Botulinum toxin can reduce excessive underarm sweating by roughly 80 to 90 percent, so choosing a doctor-led clinic in Gangnam that maps your sweat pattern precisely matters more than any single label.
To choose a good hyperhidrosis treatment clinic in Gangnam, Seoul, look for a doctor-led consultation, an accurate starch-iodine sweat map, generic botulinum toxin type A dosed to your area, and honest talk about duration and cost. At our Gangnam (Seoul) location, Dr. Yoongon Ryu assesses your sweating pattern and builds an individual plan in English.
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Hyperhidrosis is excessive sweating beyond what the body needs to cool itself, most often affecting the underarms, palms, soles, and forehead. Choosing a clinic to treat it well in Gangnam, Seoul comes down to a few concrete things rather than a slogan: a doctor who examines you in person, a clear way to locate the overactive sweat zones, transparent use of botulinum toxin type A, and a frank conversation about how long results last and what drives the cost.
Botulinum toxin is the most common non-surgical option for underarm hyperhidrosis. It temporarily blocks the nerve signal that tells sweat glands to activate, so a good clinic should be able to explain the mechanism, map exactly where to inject, and set realistic expectations. A well-run clinic maps sweating with a starch-iodine test, distributes small aliquots evenly across the affected area, and reviews you afterward.
At Reberry Clinic, hyperhidrosis care is consultation-led and provided in English. Our Gangnam (Seoul) location on Gangnam-daero is about 2 minutes from Gangnam Station exit 10, where Dr. Yoongon Ryu grades your sweating, maps the active zones, and builds a tailored plan. International patients are supported across our three Seoul-area locations (Gangnam, Myeongdong, Incheon Airport).
Sweat glands are switched on by acetylcholine, a chemical messenger released by small nerve endings in the skin. Botulinum toxin type A blocks that release at the nerve-gland junction, so the treated glands stop receiving the signal to produce sweat. Because the effect is local and temporary, a skilled injector places many tiny, evenly spaced injections across the mapped area rather than a few large ones, which is why technique and mapping matter when you choose a clinic. For underarm hyperhidrosis, most protocols use a grid of injections roughly 1 to 2 centimetres apart across each axilla, guided by a starch-iodine test that stains active sweat zones dark so nothing is missed. The toxin used is a generic botulinum toxin type A prepared and dosed by the doctor to your specific area; the clinic should discuss the category and your plan rather than push a particular product. Effects typically begin within 2 to 7 days and build over about 2 weeks, and a good clinic reviews you during that window to confirm even coverage.
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A good clinic starts with a doctor-led consultation that grades your sweating across the 4 common zones (underarms, palms, soles, forehead) before proposing anything.
Confirm the clinic uses a starch-iodine test to map active sweat zones, so injections cover 100 percent of the affected area rather than guesswork.
The clinic should use generic botulinum toxin type A dosed to your area; be wary of any clinic that will not explain the plan or spacing of the roughly grid-based injections.
Underarm results typically last about 4 to 7 months, so a trustworthy clinic tells you upfront that maintenance sessions are needed rather than promising a one-time fix.
Because dose depends on the treated area and severity, a good clinic explains cost at consultation instead of quoting a single fixed price for everyone.
See representative outcomes from Reberry Clinic. Results build gradually and vary by individual; your plan is assessed at consultation.
At our Gangnam location, Dr. Yoongon Ryu grades your sweating, checks suitability, and explains the plan and cost in English before anything is done.
A starch-iodine map marks active zones, then a grid of small injections about 1 to 2 cm apart is placed across each area, usually within about 20 to 30 minutes.
The session itself is short, and most patients return to normal activities the same day with minimal downtime.
Reduced sweating typically begins within 2 to 7 days and settles over about 2 weeks, when a review confirms even coverage.
Results generally last about 4 to 7 months, so a maintenance schedule is planned rather than a single permanent treatment.
Choose a clinic where a doctor examines and grades your sweating, maps active zones with a starch-iodine test, and uses generic botulinum toxin type A dosed to your area. Honest talk about the 4 to 7 month duration matters too. Start on our botox injection page.
Botulinum toxin type A blocks acetylcholine, the nerve signal that tells sweat glands to activate, so treated glands stop producing sweat locally and temporarily. The effect is confined to where it is injected. That is why accurate mapping across the whole affected area, rather than a few injections, is what separates a good clinic from an average one.
Our Gangnam (Seoul) location on Gangnam-daero, about 2 minutes from Gangnam Station exit 10, handles hyperhidrosis with Dr. Yoongon Ryu. International patients are also supported at our Myeongdong and Incheon Airport locations, all with English-speaking staff to coordinate your consultation and any follow-up review.
Discomfort is usually mild and brief, as very fine needles deliver small injections across the mapped area. Underarm skin tolerates it well, and numbing or cooling can be used for sensitive areas or palms. Most patients describe tiny pinches rather than pain, and the whole session typically takes about 20 to 30 minutes.
Underarm results generally last about 4 to 7 months per session before sweating gradually returns. Studies report a median duration near 197 to 205 days. Because it is not a permanent fix, a good clinic plans a maintenance schedule with you. You can read more on our botox injection page.
Most people notice reduced sweating within 2 to 7 days, with the full effect settling over about 2 weeks. Your clinic should review you during this window to confirm even coverage. If any small area still sweats, a light touch-up can be added once the initial result has fully developed.
Downtime is minimal, and most patients return to daily activities the same day. You may have tiny injection marks or mild tenderness for a short time. Avoid intense exercise, saunas, and hot baths for about 24 hours so the toxin settles evenly. A clinic that skips this advice is worth questioning.
Hyperhidrosis is usually treated one area per plan, most commonly the underarms, but palms, soles, or forehead can be assessed too. Each area is dosed separately. Because results last months, maintenance sessions repeat 2 to 3 times a year depending on how quickly your sweating returns and your lifestyle needs.
Yes, sweating treatment can be planned alongside facial botox for lines, since they target different areas and doses. Your doctor sequences them so total dosing stays appropriate. You can explore facial options on our botox injection page and discuss a combined plan at consultation.
For primary underarm sweating, botulinum toxin type A has a long safety record when a trained doctor doses it to the area. Side effects are usually limited to temporary tenderness or minor bruising. A proper consultation screens for contraindications like pregnancy or neuromuscular conditions, which is another reason clinic choice matters.
Side effects are typically mild and short-lived, such as injection-site tenderness, small bruises, or brief redness. Rarely, some people notice mild compensatory sweating elsewhere. A careful consultation and accurate mapping reduce these risks, and your doctor explains what to watch for and when to contact the clinic after treatment.
Cost depends on the area treated and the dose your severity needs, so there is no single fixed price. Underarms use more product than a small facial area, for example. Our clinic explains cost transparently at consultation. You can start on our botox injection page.
Most adults with moderate to severe underarm sweating not controlled by antiperspirants are suitable candidates. A consultation confirms your sweating is primary rather than caused by another condition. Pregnancy, breastfeeding, and certain neuromuscular disorders are contraindications your doctor will check before recommending treatment.
Before treatment, avoid shaving the underarms for a day or two and skip deodorant on the day so mapping is accurate. Afterward, avoid heavy exercise, saunas, and hot baths for about 24 hours. Your doctor gives area-specific aftercare, and a skin care routine keeps treated skin comfortable.
Be cautious of clinics that promise flawless, permanent results, name specific toxin products aggressively, or skip a doctor consultation and mapping. Claims that sound too perfect are a warning sign. A trustworthy clinic explains the mechanism, realistic duration, aftercare, and cost honestly, and reviews you as the effect settles.
For hyperhidrosis injections, 1 to 2 days in Seoul is usually enough, allowing a consultation, mapping, and the short procedure. Some patients add a day for a quick review. Because the full effect develops over 2 weeks, many international patients confirm results remotely once home.
Yes, flying within a day is generally fine, as the procedure is minimally invasive with little downtime. Avoid saunas, hot baths, and intense workouts for about 24 hours, whether at the hotel or after landing. Our English-speaking team times your visit around your flights and any follow-up.
International patients can complete the initial visit in Seoul and check results remotely, with our team offering English follow-up between trips. Because maintenance repeats every few months, many plan a return visit around travel. You can also keep up general skin care at home while your plan continues.
| Botulinum Toxin Injections | Prescription Antiperspirant | Microwave / Energy Device | |
|---|---|---|---|
| Mechanism | Blocks nerve signal to sweat glands temporarily | Aluminium salts plug sweat ducts topically | Heat energy targets sweat glands in the skin |
| Best for | Moderate to severe underarm sweating | Mild sweating or as a first step | Those seeking a longer-lasting reduction |
| Onset | Starts in 2 to 7 days, builds over 2 weeks | Gradual, needs consistent nightly use | Reduction after 1 to 2 sessions |
| Downtime | Minimal, back to daily activity same day | None, but can irritate skin | Some swelling or tenderness for days |
| Longevity | About 4 to 7 months per session | Only while used regularly | Can be long-lasting but variable |
| Cost factors | Depends on area and dose per consultation | Lower per unit but ongoing | Usually higher upfront, device-based |
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