01What 'real Botox' means — and why the question is asked so often
International patients arrive at Bangkok aesthetic clinics with one variant of the same question: 'Is your Botox real?' The question is rational. Bangkok is a high-volume market with thousands of clinics, and the price spread between licensed Thai-FDA-registered product and counterfeit imports is wide enough to give bad actors a margin.
The Thai FDA actively prosecutes counterfeit-toxin cases — there have been multiple seizure stories in the Bangkok Post over the last 24 months — but the existence of those cases is exactly why first-time international patients ask.
'Real Botox' has a precise meaning. In Thailand, four botulinum toxin products are legally registered with the Thai FDA: Allergan Botox (Allergan, USA), Xeomin (Merz Pharma, Germany), Hutox (Huons Co., Korea), and Neuronox (Medytox, Korea).
Each carries a 6-digit Thai FDA registration number printed on the box and the vial. A licensed clinic operating legally in Thailand uses one or more of these four products.
Anything else — products called 'Allergan generic', 'Botox Hong Kong', 'Korean import' without a brand name, or anything sold below ฿2,000 per area — is a flag that the product chain may not be FDA-registered.
The check is not adversarial. Reputable Bangkok clinics expect international patients to ask, and the operating physician brings the sealed vial to the consultation room and shows it to you before mixing.
If a clinic resists the check or insists 'we already mixed it', that is itself the answer.
02The four brands legally available in Thailand — what each one actually is
Botulinum toxin Type A is a single biological molecule. The brand differences are formulation, accessory protein content, and unit-equivalence — not the active mechanism.
All four brands relax the same neuromuscular junction. The decision tree is mostly about evidence-base, drift profile, and price.
- Allergan Botox (USA, ฿8,000 per area) — the original, FDA-approved in the US since 2002. Longest treatment-record evidence base. Allergan units are the standard reference for unit-equivalence calculations across the industry. Trade-name products in the West that international patients recognise are usually this. The accessory protein content is moderate — some patients develop antibodies after years of use, which is why your physician may rotate brands every 5–7 years.
- Xeomin (Merz Pharma, Germany, ฿5,000 per area) — accessory-protein-free formulation. The marketing pitch is 'pure neurotoxin, lower antibody risk', and the published evidence on antibody development is genuinely lower for Xeomin than for Allergan after multi-year repeated dosing. Onset and peak are similar to Allergan; duration claims of '5–6 months' that some clinics market are not strongly supported by the Thai-population evidence — assume 3–4 months for budgeting purposes.
- Hutox (Huons, Korea, ฿3,000 per area) — Korean botulinum toxin, Thai FDA-registered since 2018. At the typical dose for Asian forehead and brow lift, clinical equivalence to Allergan is well-documented in Korean and Thai journals. The 1-unit Hutox does not exactly equal 1-unit Allergan — physicians use roughly a 1:1 conversion ratio for forehead but adjust for masseter. The product is genuine; the price reflects manufacturing-cost differences, not quality differences.
- Neuronox (Medytox, Korea, ฿3,000 per area) — the other major Korean toxin, also Thai FDA-registered. Functionally similar to Hutox at typical doses. Some physicians prefer Hutox vs Neuronox for personal-experience reasons; both are mainstream Korean products. The reason both Korean toxins exist at the same price tier is straightforward market competition — the manufacturers fight for Korean and Southeast Asian market share at the budget end.
- Other names you may see — Letybo (Korea), Innotox (Korea), Daxxify (USA, longer-duration claim) — are NOT yet Thai FDA-registered as of mid-2026. A clinic offering them is either using a parallel import (legal grey area) or the product is mislabelled. Confirm Thai FDA registration before you accept any toxin product not on the list above.
03Authentication checks before the chair — the four-step protocol
Before any toxin enters your face, perform these four checks. They take 90 seconds and are the difference between booking with confidence and gambling.
A reputable Bangkok clinic — including ours — will walk you through them without being asked.
- Sealed vial check — ask the physician to bring the unopened toxin vial to the consultation room. The vial should be glass, sealed with a metal tear-off cap, and labelled with brand name (one of the four above), batch number, and expiry date. The ice in the cool-box should be intact, not melted. Botulinum toxin is a refrigerated product — a vial that has been sitting at room temperature is degraded protein.
- Thai FDA registration number — the box has a 6-digit FDA registration number printed on it. For Allergan Botox the number begins with '1C', for Xeomin and the Korean products the format differs. The number can be cross-checked on the Thai FDA website (oryor.com) by anyone with a phone — and yes, you can do this in the consultation room while the physician watches.
- Mixing in front of you — botulinum toxin is shipped as freeze-dried powder and reconstituted with sterile saline at the clinic. Reputable physicians perform the mix in front of the patient or with the patient watching from the consultation room. Pre-mixed toxin is allowed by Thai law but is a flag for first-time international patients — ask for a freshly-mixed vial if you are uncertain.
- Thai Medical Council license — every operating physician in Thailand has a TMC license number. Ask for it, screenshot the card if shown, and search the MOPH MEDcert website (medcert.dms.go.th) to confirm the physician is licensed for the procedure being performed. International patients sometimes assume any white-coat practitioner is a doctor; in Thailand, aestheticians and nurse-injectors are NOT licensed to perform toxin injections, and the legal liability if anything goes wrong is materially different.
04Asian-face dosing math — where Western dose tables diverge
Western Botox dose tables — the ones most international patients have seen on Allergan's US patient site or in dermatology textbooks — assume Western facial muscle volume. Asian faces, particularly the masseter (jawline-slimming) and the trapezius (shoulder-slimming), have meaningfully different muscle-volume distributions.
Using Western doses on Asian faces underdoses these zones; the result is a treatment that looks 'subtle' for the wrong reason — not because the physician was conservative, but because the units were too few.
Forehead and crow's-feet are similar between populations — typical doses run 8–16 units forehead, 8–12 units per side crow's-feet. Brow-lift at the corrugator is similar.
These zones are where Western dose tables are roughly accurate.
Masseter (jaw-slimming) is where the divergence matters. Asian patients typically take 25–40 units per side; Western patients typically take 15–25.
The masseter muscle in Asian populations is genetically larger on average — there is published Korean and Thai literature on this. Underdosing the masseter is one of the most common 'Botox didn't work' complaints from Asian-American patients who had treatment in Western clinics; the dose was Western-calibrated.
Trapezius (shoulder-line slimming, popular for women wanting the 'straight collarbone' aesthetic) takes 50–100 units per side on Asian women. This is a genuine high-dose zone and is priced accordingly — typical Bangkok pricing for trapezius starts around ฿15,000–฿25,000 per side at the trapezius-specific service line, NOT the per-area Botox price quoted at the top of this guide.
Practical advice: ask the physician for a unit count before you accept the price. If the operating physician quotes you '฿8,000 for masseter' without specifying how many units, that is a flag — the price is the same whether you receive 20 units (Western dose, will not work on most Asian masseter) or 35 units (correct Asian dose).
A quote that includes the unit count protects you from the underdosing trap.
05Price × longevity matrix — matching brand to use case
The price difference between Allergan at ฿8,000 and Hutox at ฿3,000 is real, but the clinical-outcome difference at typical doses is small for most zones. The decision matrix:
- First-time-ever Botox + permanent-record matters (executive, public-facing role) → Allergan ฿8,000. Longest treatment-record evidence base, the brand most likely to be recognised by your future dermatologist back home if there is ever a documentation question.
- Repeat patient + low antibody risk priority → Xeomin ฿5,000. Accessory-protein-free formulation has the strongest published case for low antibody development across multi-year repeated dosing. Some patients on multi-year Allergan rotate to Xeomin proactively.
- Forehead + crow's-feet only, value-conscious → Hutox or Neuronox ฿3,000. At typical doses for these zones, clinical equivalence to Allergan is well-documented. Saving ฿5,000 per area on routine maintenance is rational — that money buys you an extra IV drip and a hotel upgrade.
- Masseter (jawline-slimming) → physician's recommended brand at correct dose. The brand matters less than the unit count here. We default to Allergan for first-time masseter patients on the recommendation strength, but Hutox at correct dose is acceptable for follow-up sessions.
- Trapezius (shoulder-line slimming) → priced as a separate service line, typically ฿15,000–฿25,000 per side, NOT per per-area Botox pricing. Confirm the unit count and the brand at booking — the high dose makes brand consistency more important here than for forehead.
06International-patient logistics — what changes when you fly in for it
Botox is one of the most flight-resistant aesthetic injectables — cabin pressure does not affect product dispersion, post-flight swelling does not affect injection accuracy, and the no-downtime profile means you can arrive and walk out without the trip being structured around recovery. Same-day arrival appointments for Botox are routine for international patients at Waleerat Clinic; we have done thousands of arrival-day Botox sessions and there has been no flight-duration-correlated complication pattern.
Pre-flight: hydrate (the cabin-water 2-litre target), skip alcohol on the flight (alcohol amplifies bruising risk on injectables), and screenshot the clinic address in Thai script before you board so any taxi can find it without the driver needing to read English. Post-injection: avoid lying flat for 4 hours (no in-flight nap immediately after a Day-1 Botox), no heavy exercise for 24 hours, no facial massage for 14 days, and avoid hot environments (sauna, onsen, very hot shower) for 24 hours.
Onset is 3–7 days; peak is 14 days. International patients on a 5-night Bangkok trip should book Botox on Day 1 or Day 2 at latest if they want any visible result before flying home — Day-4 Botox is pre-onset on Day-6 departure and you will not see the effect until you are already home.
The treatment-plan summary the operating physician hands you at the end of the visit (see our doctor-continuity post) records the brand, units per zone, and date — bring it to your follow-up appointment in 14 days at any clinic globally if you want to compare brand response.
Brand availability: Allergan and Xeomin are stocked at both Waleerat branches. Hutox and Neuronox are also stocked.
The brand is your choice; quote includes the unit count for transparency. International-patient bookings via LINE @waleerat get the LINE-quoted price, the operating physician of your choice (Dr Waleerat, Dr Arada, or Dr Nawarat), and a sub-10-minute wait at peak hours — see our walk-in-vs-pre-book section in the same-day arrival post for the friction-tax detail.