Barbie Botox / TrapTox — Trapezius Contouring
The viral 2024–2025 TikTok treatment: slim, elongate, and relax the shoulder line with botulinum toxin into the upper trapezius.
Questions to answer before choosing
Compare options by concern, goal and recovery window, then confirm suitability during an individual physician assessment.
Barbie Botox/TrapTox is a precision injection of botulinum toxin into the upper trapezius muscle to relax bulky muscle, elongating the neck and softening the shoulder line. Suitable for brides, professionals with long screen hours, or those experiencing chronic tension headaches and sloping shoulders.
Results are expected within 24 hours, with full activity resumed immediately. The treatment is performed in 5-8 small injection points per side, totalling 50-100 units across both shoulders.
Available at Waleerat Clinic in Bangkok, priced from ฿3,900 (touch-up dose) to ฿39,900 (both shoulders). Thai FDA approved.
- Category
- Body Contouring
- Duration
- 20 minutes
- Downtime
- None — full activity within 24 hours
- Anaesthesia
- Topical (cooling) — usually not required
- Price (from)
- From ฿3,900 (entry — touch-up dose) · ฿24,900 (full one-side · single session) · ฿39,900 (both shoulders · 100 units)
- Brands used
- Botox (Allergan) / Dysport (Ipsen) / Xeomin (Merz)
- Country of origin
- Ireland / United States / Germany / South Korea
- Regulatory
- Thai FDA · US FDA · KFDA · CE
- Halal compatibility
- Compatible (synthetic ingredients)
- Locations
- Siam Square One · BTS Siam Exit 3
Barbie Botox (also known as TrapTox or Trapezius Botox) is a precision injection of botulinum toxin into the upper trapezius muscle — the band of muscle running from the neck down across the top of the shoulders. By relaxing the bulky upper trap, the neck appears longer, the shoulder line drops and softens, and chronic tension headaches, posture-related neck pain, and sloping-shoulder appearance all improve simultaneously.
The result is the elongated 'Barbie-doll' silhouette that went viral on TikTok and Instagram Reels — popular with brides, public-facing professionals, and anyone whose work involves long screen hours that hypertrophy the trapezius. Performed in 5–8 small injection points per side, totalling 50–100 units across both shoulders.
Where it comes from, what's inside, who certifies it.
Botulinum toxin is bacteria-derived (Clostridium botulinum), no porcine, no alcohol vehicle. Halal-compatible per common scholarly opinion; not formally LPPOM-MUI certified.
- Country of origin
- Ireland / United States / Germany / South Korea
- Manufacturer
- Allergan (Botox) · Ipsen (Dysport) · Merz (Xeomin)
- Brands stocked
- Botox (Allergan) · Dysport (Ipsen) · Xeomin (Merz)
- Regulatory approvals
- US FDAKFDAEU CEThai FDA / อย.
- Animal-derived?
- No — synthetic / bio-fermented source
- Vegetarian-friendly
- Yes
- Lot-number shown to patient
- Yes — every vial, before injection
Botulinum toxin bio-fermented from Clostridium botulinum bacterial culture — non-animal source. Off-label use for trapezius is well-established in cosmetic dermatology globally; performed in Thailand by licensed physicians under standard clinical protocols.
- ✦Brides preparing for off-shoulder gowns or strapless wedding dresses
- ✦Public-facing professionals seeking a longer, more elegant neckline
- ✦Patients with chronic upper-trap tension from desk work or device use
- ✦Patients wanting to soften muscular shoulders from athletic training
- ✦Travelling international patients booking a single Bangkok visit
- 01Trapezius mapping
Doctor palpates the trapezius muscle and marks 5–8 injection points per side, calibrated to your muscle bulk.
- 02Cooling compress
30–60 seconds of cold for comfort — most patients don't need topical anaesthesia.
- 03Multi-point dosing
50–100 units total (depending on muscle volume and goal); injected at calibrated depths to relax muscle without affecting strength for normal tasks.
- 04Post-care brief
Avoid heavy lifting for 24 hours; results begin appearing 5–7 days, peak at 3–4 weeks.
Compare our pricing with anyone — here is what you get that's different.
Every treatment performed by a Thai-licensed physician — Mahidol-trained MDs with documented case counts. No nurse-injectors.
Show me the lot. Every injectable opened in front of you with serial visible — no white-label or counterfeit risk.
Our injectables and devices pass at least one major regulator's filing. Provenance is published on every service page.
Thai and English are spoken by all clinical staff. 中文, 日本語, 한국어 and العربية are covered by an on-call medical translator, arranged when you request it at booking.
Siam Square One, at BTS Siam Exit 3 opposite Siam Paragon. Walk-in distance from the platform, no driving stress.
Moderate — vacuum + cold
Topical anaesthetic 30 minutes before every treatment. Anxiolytics available on request. Your physician adapts technique to your sensitivity level.
Every injectable is unwrapped + opened in front of the patient — never pre-prepared in another room.
Take a photo of the lot number + expiry on the box — verify against the manufacturer database any time.
Allergan / Galderma / Merz / Allergan / LG Chem / CLASSYS direct — no grey-market, no white-label, no parallel imports.
Consent form names the exact brand + lot. If we substitute, we re-consent on the spot.
Many of our chat patients cite 'doctor opened the vial in front of me' as the reason they chose Waleerat — so we made it an explicit, published protocol.
137 first-time patients asked this in chat — so we wrote it as a checklist.
- •Sun exposure / tanning — 1 week prior
- •Retinoids, AHA, BHA — 1 week prior
- •Active skin infections — postpone if present
- •Pregnancy or breastfeeding — postpone
- •Government photo ID
- •List of current medications
- •Hair tie if shoulder-length+
- •Comfortable clothes (no high collar for face/neck treatments)
Click any concern for a detailed explainer.
Asian patients (HK, China, Singapore, Japan) often stack treatments in one visit for efficiency. Your physician will tailor a program in your consultation.
Research-informed guidance for this treatment type. Your doctor’s written plan after assessment always takes priority.
Before your appointment
- Tell the doctor about swallowing, breathing, nerve or muscle problems, previous toxin treatment, pregnancy or breastfeeding, active infection, and every medicine or supplement you use.
- Do not stop prescribed medicine on your own; ask the prescribing clinician if any change is needed.
- Confirm the treatment area, intended effect, product, dose plan, and follow-up before treatment.
After treatment
- Avoid rubbing or massaging the treated area; apply makeup gently.
- Follow the activity timing in your written plan. Evidence does not support blanket rules about lying down or air travel for every patient.
- Use the clinic's 1:1 contact path if recovery differs from the plan.
What may be expected
- Small injection-site bumps, redness, tenderness or bruising may occur and usually settle.
Contact us promptly
- Contact the clinic for new eyelid or brow droop, marked asymmetry, visual symptoms, or symptoms that worsen.
- Seek emergency care for difficulty swallowing, speaking or breathing, or generalized weakness.
1:1 follow-up
Before you leave, the team records your treatment, expected recovery, follow-up timing and direct contact path. A doctor reviews concerns when needed.
Siam Square One flagship — opposite Siam Paragon, skywalk from BTS Siam Exit 3, in the CBD heart of Bangkok (Pathum Wan). 1-minute walk from BTS.
- ●BTS Siam (Exit 3)1m
- ●Siam Paragon2m
- ●Siam Discovery3m
- ●Siam Center3m
- ●Siam Kempinski Hotel4m
- ●MBK Center5m
- ●Chulalongkorn University8m
- ✦Visibly elongates the neck and softens the shoulder slope
- ✦Relieves tension headaches and posture-related neck pain
- ✦Improves the appearance of strapless dresses, bridal gowns, and off-shoulder tops
- ✦Gives the 'Barbie' silhouette popularised on TikTok 2024–2025
- ✦Relaxes desk-worker and screen-fatigue trapezius hypertrophy
- ✦Reversible — wears off over 4–6 months
What to expect
Visible relaxation 5–7 days; full elongation effect at 3–4 weeks. Lasts 4–6 months. Individual results vary with muscle bulk and metabolism.
Individual results vary. Outcomes depend on age, skin type, anatomy, lifestyle and adherence to aftercare. All procedures carry risk; detailed risk information is reviewed during consultation and signed informed consent is obtained before any treatment.
Before you choose a clinic
A consultation is for deciding, not committing
Bring your goals, medical history, medicines and previous procedures. Ask for plain-language answers and take time to consider them before giving informed consent.
See the clinic-choice checklist →Ready to talk to our doctor?
Send a photo or describe your concern on LINE — we'll suggest a treatment plan and price range before you visit.
Will I lose strength in my shoulders or arms?+
How much will the muscle slim down?+
Can it help with tension headaches?+
Why is it called 'Barbie Botox'?+
Is it Halal-friendly?+
How long does it last?+
6 more questions+
Is Barbie Botox / TrapTox — Trapezius Contouring halal-friendly?+
What happens during a Barbie Botox / TrapTox session?+
Who is a good candidate for Barbie Botox / TrapTox?+
Does Barbie Botox / TrapTox hurt?+
What is the recovery like after Barbie Botox / TrapTox?+
How many sessions before I see results?+
Real questions from real customers — collated from chat conversations.
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Are there side effects?+
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Pregnant or breastfeeding — can I do this?+
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Translation support for Chinese / Japanese / Korean / English?+
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Can I pay by credit card / 0% instalment?+
Still have questions?
CHAT ON LINEReady to talk it through? Let's begin.
A 30–45 minute physician consultation is complimentary. We'll listen first — discuss your goals, then decide together whether any procedure is right for you.