Jaw Slimming in Rossendale
Relaxing the masseter muscle to soften a square jawline and taper the lower face.
In short
Jaw slimming relaxes the masseter muscle so the lower face narrows and a square jawline softens, with the change visible from around six to eight weeks and clearest at two to three months.
- How long it lasts
- 4 to 6 months
- When you see it
- narrowing from 6 to 8 weeks, clearest at 2 to 3 months
- Downtime
- none; some people notice mild chewing fatigue for a week or two
- Does it hurt
- mild
- Sessions
- one, reviewed at 4 weeks; the shape change builds with repeat treatment
The masseter is the muscle that closes the jaw, and when it is well developed it widens the lower face. Relaxing it reduces that bulk, so the jawline softens and the face reads as more tapered from the front. This is a cosmetic treatment and that is the whole of what it is offered for here — see the note below if what actually bothers you is jaw pain or grinding.
What it changes
Reducing masseter bulk narrows the lower face and creates a softer, more tapered jawline. It is a change in width rather than in the line of the jaw itself — if what you want is a sharper jaw BORDER, that is filler along the mandible and a different treatment.
The change is gradual and it is not subtle once it arrives: the muscle reduces over two to three months, and the effect builds with repeat treatment rather than arriving all at once.
A closer look
A plan starts with a conversation
Discuss and assess
Talk through your concerns, medical history and previous treatment.
Understand the plan
Discuss options, limits, risks and costs, including doing nothing.
Take time
Ask questions and decide whether you want to proceed.
The sequence describes the consultation approach. It does not mean treatment is appropriate or will happen on the same day.
If it is jaw pain or grinding that bothers you
That is a medical problem rather than a cosmetic one, and it is not something this clinic offers or assesses. Start with your dentist — grinding damages teeth, a dentist can see the wear, and a night guard is often the first and most useful thing.
I would rather say that plainly than take a booking for the wrong reason. If you are having this treatment for the look of your jawline and you also grind, tell your dentist you are having it done.
Timeline
Nothing happens for the first few days. Narrowing is visible from around six to eight weeks, is clearest at two to three months, and lasts four to six months before the muscle recovers its bulk.
You will be given written aftercare before you leave, and a direct number to reach me on if anything concerns you afterwards. Reviews are offered at two weeks so we can assess the result together and adjust if needed.
Not suitable if
- Anyone pregnant or breastfeeding
- Anyone whose reason for coming is jaw pain or grinding rather than the shape of their jawline
- Anyone under 18
Sources and further reading
- NHS — Dermal fillers
- British Association of Dermatologists — patient information
- Joint Council for Cosmetic Practitioners
- Aesthetic Complications Expert Group
This page is general information, not personal medical advice. Every treatment needs an individual assessment, and what is right for someone else may not be right for you.
We do not publish before-and-after images for anti-wrinkle treatments. The medicine used is prescription-only, and UK advertising rules do not permit it to be promoted to the public — including through result photographs. We will show you relevant examples in person at your consultation.
Common questions
Jaw Slimming — what people ask
- Will it change my face shape?
- Over two to three months the lower face usually narrows and softens. It is a gradual change rather than an immediate one.
- Will it help my jaw pain or my grinding?
- That is not what this is offered for here, and I am not able to treat it — jaw pain and grinding are medical problems and this clinic is not registered with the Care Quality Commission, which is what treating them would require. See your dentist first: they can see the wear on your teeth and a night guard is often the most useful starting point.
- How long does the narrowing last?
- Four to six months for the shape change, and it holds better with repeat treatment as the muscle becomes less strong over time.
- Will it affect my chewing?
- Dosed correctly, no. Some people notice mild fatigue with very chewy food for a short period after the first treatment.
- Is masseter treatment safe?
- The common effects are temporary and minor: a small bruise, occasional headache in the first day, and rarely a temporary heaviness of the brow or eyelid if the product spreads beyond where it was placed. That last one resolves as the effect wears off. Serious complications are rare, and the main variables are anatomical knowledge and dose.
- Can I have masseter treatment while pregnant or breastfeeding?
- No, not during pregnancy or breastfeeding. As with all injectables here it is a precaution rather than evidence of harm, and it is not a treatment that cannot wait.
Travelling to Charis
The clinic is in Stacksteads, Bacup, with patients travelling in for jaw slimming from Rawtenstall, Haslingden, Ramsbottom, Burnley, Rochdale, Bury, Accrington and across the Rossendale valley.
Areas we coverYou may also be looking at
A consultation for the treatment of lines and wrinkles — assessment first, with the options and what they can realistically achieve discussed before anything is decided.
Full-face assessment and treatment planning — restoring support and balance across the face rather than treating features in isolation.
Treatment of the platysma bands to soften the downward pull on the jawline and neck.
Get in touch
Book a consultation
Consultations are £30, and that comes off the cost of your treatment if you go ahead. No pressure to book anything on the day — if you are not sure whether you want treatment at all, that is still a good reason to come and talk.