HYPERHIDROSIS BOTOX IN SEOUL: SWEATING TREATMENT GUIDE 2026

Sweating that soaks through a shirt in a meeting or drips onto a keyboard is not just a summer problem, and Seoul clinics have made hyperhidrosis Botox one of their most quietly popular walk-in treatments. This guide walks through what a real session looks like in 2026, what it costs in KRW and USD, and which brand your injector will most likely reach for.

WHAT HYPERHIDROSIS BOTOX ACTUALLY DOES

Botulinum toxin blocks the nerve signal that tells your sweat glands to fire. Injected shallowly into the dermis across the underarm, palm, sole or forehead, it switches off eccrine gland output in that patch of skin for around four to seven months. The muscle underneath is barely touched at these depths, so you keep normal grip strength in your hands and normal facial movement in your forehead, which is the concern most first-timers walk in with. In clinical practice in Seoul, injectors follow the same Minor's iodine-starch mapping protocol used in dermatology textbooks worldwide, then space injection points about 1.5 to 2 cm apart across the treatment zone.

The dose scales with area. A typical underarm treatment uses 50 units per side, palms use around 100 units per hand, and a forehead treatment sits closer to 20 to 30 units total. Korean-manufactured brands like Nabota, Botulax and Coretox price out well below Allergan's original Botox and are the workhorses of Seoul hyperhidrosis practice. For a deeper look at how these brands differ in units, onset and price, see Korean botox brands vs Allergan.

WHICH BODY AREA GETS TREATED MOST IN SEOUL

Underarm hyperhidrosis is by far the most common request among medical tourists, and it is also the easiest to treat with minimal discomfort. Palms come second, and they require a numbing cream sit of 45 to 60 minutes plus sometimes an ice block or vibration tool during injection because the palm skin is thick and dense with nerve endings. Forehead treatment is popular among visitors coming to Korea in July and August humidity, and it needs a careful injector because too shallow a plane still leaves you sweating while too deep drops the brow. Feet are technically possible but few Seoul clinics do them as a routine service, so ask in advance if soles are your priority.

Most clinics on the Sinnonhyeon and Gangnam Station strips run hyperhidrosis Botox as a five-minute add-on to a face injectable session. If you are already planning masseter Botox for jaw slimming or a forehead line treatment, layering in underarms costs the extra vials and about ten added minutes of chair time.

HOW MUCH DOES IT COST IN SEOUL IN 2026?

Pricing in 2026 has held steady after a small dip in late 2025 driven by three new domestic toxin approvals adding supply. Expect Korean-brand pricing at the low end and Allergan-brand pricing about 60 to 100 percent higher. Foreigner pricing on the menu is usually the same as local pricing at reputable Gangnam clinics, though a few Myeongdong tourist-facing operations still quote a walk-in premium, so it is worth checking the number against a second clinic before you commit.

• 01Underarm hyperhidrosis, Korean brand (Nabota, Botulax): 250,000-380,000 KRW total (about 180-275 USD)
• 02Underarm hyperhidrosis, Allergan Botox: 450,000-650,000 KRW total (about 325-470 USD)
• 03Palm hyperhidrosis, Korean brand: 400,000-600,000 KRW per pair of hands (about 290-435 USD)
• 04Palm hyperhidrosis, Allergan Botox: 700,000-950,000 KRW per pair (about 505-690 USD)
• 05Forehead sweating, Korean brand: 120,000-180,000 KRW (about 87-130 USD)

VAT handling is inconsistent, so ask before the injection whether the quoted number is inclusive. If the price ends in an odd figure like 264,000 KRW it is usually VAT-in, and if it is a round 250,000 you should confirm out loud. The full playbook on VAT and package traps is in hidden costs at Seoul clinics.

WHAT DOES A SESSION ACTUALLY FEEL LIKE?

For underarms, expect around 30 to 40 minutes door to door: a short consultation, a numbing cream layer for 20 minutes, an iodine-starch test in some clinics to map the wet zones, then 15 to 20 shallow injections per side with a very fine 32-gauge needle. Pain reads as a two or three out of ten for underarms and a five to seven for palms. For forehead, add another five minutes for careful marking to avoid dropping the brow. You can put your shirt back on and leave immediately, but avoid deodorant for the rest of the day and skip a serious gym session for 24 hours to let the toxin settle where it was placed.

Onset is not instant. You start feeling drier around day three, hit clear results by day seven, and reach full effect by day fourteen. Duration varies with body area and metabolism. Underarms typically last six to seven months, palms four to five months, and forehead sits in the middle at around five months. Keep the receipt with the exact units, brand and lot number, because if you come back for a top-up your injector will use that as the starting point rather than guessing from scratch.

HOW LONG DOES HYPERHIDROSIS BOTOX LAST IN SEOUL?

Most patients get two treatments a year for underarms and around three per year for palms. If you know you sweat most in the summer humidity, timing your first Seoul session for late April or early May lines up the peak effect with June through October. If you fly in during winter, aim for late January so you are fresh through spring travel. Skipping cycles is fine, since the nerves regenerate normally and there is no rebound sweating. If the first session lands weaker than expected, most clinics offer a free touch-up between day 14 and day 21 to add units in patches that were undertreated.

WHICH SEOUL DISTRICTS RUN HYPERHIDROSIS BOTOX WELL?

Sinnonhyeon and Gangnam Station clinics offer the best value ratio because volume keeps single-vial pricing competitive, and injectors here treat multiple hyperhidrosis cases a day. Apgujeong and Cheongdam premium clinics tend to charge 20 to 40 percent more and use Allergan Botox by default, which some travellers prefer for consistency across cycles. Myeongdong is convenient if your hotel is near the shopping district, but do a quick sanity check on unit pricing since foreigner-facing menus vary widely there. For a full breakdown of where to book, see Gangnam vs Hongdae vs Apgujeong and Sinnonhyeon clinic district guide.

Book at least three days ahead in July and August, when hyperhidrosis appointments spike hard among both locals and visitors. For the rest of the year, next-day slots are usually available if you message the clinic through KakaoTalk or their booking chat. Bring a printout of any prior treatment record if you have one from home, since Seoul injectors will use it to match brand and unit count rather than starting cold.