TrapTox in London — Trapezius Botox for Shoulder Slimming & Tension Relief
Subtle shoulder/neck contouring and relief from trapezius over-activity, delivered by clinician-led injectors at Santi London (South Kensington).
Consultation required to assess suitability. Results and longevity vary.
What is TrapTox?
“TrapTox” refers to using botulinum toxin injections to relax the upper trapezius muscles. For many, these muscles are over-active from posture or training, creating bulk at the base of the neck/shoulders. Carefully placed doses can:
- Slim and soften the shoulder line for a longer neck/“swan-neck” aesthetic.
- Reduce tension from chronic over-activity (e.g., desk posture, stress).
- Improve balance with adjacent muscles for more elegant posture.
Treatment naming is colloquial (“TrapTox”, “Barbie Botox”). We use medical dosing principles tailored to your anatomy.
Aesthetic Benefits
- Slimmer, softer shoulder contour
- Longer-looking neck and clavicle line
- More elegant posture profile
Functional Benefits
- Less trapezius tightness/tension
- Can reduce posture-related discomfort
- Complements physio & posture work
Suitable Candidates
- Visibly bulky upper traps from over-activity
- Tension from desk work, stress or lifting
- Seeking subtle contour rather than volume
How TrapTox Works
Botulinum toxin partially relaxes the upper fibres of the trapezius, reducing contraction and bulk over time. We treat with measured, distributed micro-doses to achieve a natural taper without compromising shoulder function.
- Onset: 5–14 days • Peak: ~4–6 weeks • Longevity: ~3–4 months on average
- Downtime: Minimal; occasional tenderness or bruising
- Aftercare: Keep upright 4 hours; avoid heavy upper-body training for 24 hours
Dose & Safety
Dosing is individualised by our clinician after assessment of muscle bulk, asymmetry and posture. As with any injectable, risks include bruising, temporary weakness, asymmetry and rare adverse events. We maintain medical standards, sterile technique and careful follow-up.
If you’re a weightlifter/athlete, tell us during consultation—we can plan conservative dosing and step-wise titration.
Is TrapTox right for me?
We’ll advise if TrapTox, masseter treatment, or a combined plan best matches your goals.
Dosing and fees are tailored to your anatomy and goals; a consultation is required.
TrapTox — frequently asked questions
How many units do I need?
Dose depends on muscle bulk and goals. We often start conservatively and titrate at review to keep results natural and functional.
Will it affect my workouts?
Expect reduced over-activation of the upper traps. Many patients report improved posture comfort; heavy shoulder training should be paused for 24 hours post-treatment.
When will I see results and how long do they last?
Early changes appear within 1–2 weeks, with best definition by 4–6 weeks. Maintenance is typically every 3–4 months.
Is it safe?
All medical treatments carry risks. We assess suitability, obtain informed consent, use sterile technique and provide aftercare and review.
Visit us in South Kensington
Santi London, 33 Thurloe Street, South Kensington, London SW7.
Close to the V&A, Natural History Museum and South Kensington station.