Trapezius Slimming (TrapTox)
from £650
What is Trapezius Slimming?
If your shoulders feel permanently tight, sit high, or have taken on a bulky, rounded shape, the trapezius muscle is usually responsible. It runs from the base of your skull across your shoulders and down your upper back, and it responds to stress, desk work and heavy training by growing thicker and holding tension.
Trapezius slimming, widely known as TrapTox, uses precisely placed injections to relax the upper portion of this muscle. As the muscle softens over the following weeks, two things happen. The chronic tightness eases, and the shoulder line gradually lowers and slims, creating the appearance of a longer neck and a more elegant, open posture. At Karwal Aesthetics in Mayfair, every treatment is carried out personally by Dr Karwal, who assesses your muscle bulk and tension pattern before tailoring the dose to you.
Who is it for?
This treatment suits two groups who often overlap. The first comes for relief: desk workers with stubborn neck and shoulder tightness, people who carry stress in their upper body, and those who train hard and have overdeveloped traps. The second comes for the aesthetic change: a softer shoulder slope, a neck that reads longer in photographs, and necklines and off shoulder clothing that sit better. Many patients book for the tension and stay for the silhouette.
FAQs
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Your appointment begins with a consultation and muscle assessment, where Dr Karwal examines the size and firmness of the trapezius and discusses what you want from treatment. The injections themselves take around 15 to 30 minutes, and most people describe them as a brief scratch. There is minimal downtime, and you can return to your day immediately, avoiding intense exercise for 24 to 48 hours.
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The muscle begins to relax within one to two weeks, with tension relief usually noticeable first. The visual slimming develops more gradually as the muscle reduces in bulk, typically reaching its best at six to eight weeks. Results generally last three to four months, sometimes longer with repeat treatments, and vary with your metabolism, activity level and lifestyle.
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Most patients find it very tolerable. The injections are quick and use a fine needle, and the trapezius is less sensitive than facial areas. No anaesthetic is usually needed.
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The treatment targets the upper trapezius, and the dose is tailored so surrounding muscles compensate for everyday movement. You may notice mild weakness when shrugging or lifting overhead in the first few weeks. Heavy lifters should discuss training goals at consultation so Dr Karwal can adjust the approach.
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Massage relieves tension temporarily by working the muscle from outside. This treatment relaxes the muscle at its source for months at a time, which is why many patients with long standing tension find it more effective than repeated massage.
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A single session produces visible results. For a significant reduction in muscle bulk, a course of treatments spaced a few months apart usually achieves the strongest and longest lasting change.
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No, and it's worth knowing this beforehand. Tension relief comes first, within a week or two, while the slimming effect builds gradually over six to eight weeks as the muscle reduces.
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Side effects are usually mild and temporary: soreness at the injection points, occasional light bruising, and sometimes a feeling of slight weakness or stiffness in the treated area for a short period. Dr Karwal's emergency medicine background means you're in experienced medical hands throughout.
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You'll find us at 15 Dover Street, London W1S 4LP, in the heart of Mayfair, Central London. We're ideally situated for clients travelling from across London and beyond, with excellent transport links nearby. Book your consultation today.