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Aesthetics by Gwen
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Masseter (jawline slimming): products laid out in Gwen's treatment room

A softer jawline, a calmer jaw

Masseter (jawline slimming)

Relaxes the jaw muscle to slim a square jawline and ease teeth grinding, clenching and jaw tension.

Treatment time
10–15 minutes
Results
A few weeks; full result at 4–6 weeks
Lasts
3–6 months
Downtime
None
Client

Men often need additional units for the best result.

Your price

£180

No payment now. Pick your dates next, and Gwen will confirm with you personally.

About the treatment

The masseter muscle at the angle of the jaw does the hard work of chewing and clenching. When it's overactive it can square the jawline and cause teeth grinding (bruxism) and jaw pain. Precise injections reduce its activity, slimming the lower face and easing tension.

  • Jawline slimming

    Reduces the bulk of the muscle for a softer, more contoured jaw.

  • Relief from bruxism

    Eases grinding and clenching, protecting teeth and reducing jaw pain.

  • Facial balance

    Brings the lower face into proportion for a more harmonious look.

  • Non-surgical

    Noticeable results without surgery or downtime.

Your visit

What happens, step by step.

  1. 01

    Consultation

    We assess the muscle and talk through grinding, clenching and your goals.

  2. 02

    Skin prep

    The jawline is cleansed and the points are marked.

  3. 03

    Treatment

    A few small injections into each side. Around 10–15 minutes.

  4. 04

    Back to your day

    Return to normal activities straight away.

Walk through the room in 3D

Aftercare

Looking after your result.

Full aftercare guide Aftercare booklet (PDF)
  • No pressureAvoid massaging or pressing the jaw for 24 hours.
  • Be patientThe muscle relaxes gradually; full results show at 4–6 weeks.
  • MaintainRegular treatments keep the muscle relaxed and the result lasting.

Often paired with