Soften a strong, square jaw

Jaw slimming eases the muscle that widens the lower face, for a softer shape, following a consultation with our prescriber.

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Jaw slimming in Southport

Jaw slimming, sometimes called masseter treatment, uses a prescription injectable to ease the large chewing muscle at the angle of the jaw. Over a few weeks the muscle reduces in bulk, softening a square or wide jawline into a slimmer shape. It applies the principles behind our muscle-softening injections to the shape of the lower face.

Natural Results You'll Love

Slims the lower face
Easing the masseter muscle gradually reduces its bulk, softening a square jaw into a slimmer, more oval shape.
Because it eases the chewing muscle, treatment can also ease clenching, jaw tension and related discomfort.
The change happens slowly over a few weeks, so the slimming looks natural rather than sudden.

Why jaw slimming works

The masseter is the muscle you use to chew, and in some people it is naturally large or has grown through clenching and grinding, widening the lower face. Easing the muscle with a prescription injectable allows it to reduce in bulk over the following weeks, so the jaw slims and any clenching often eases too. Because it uses a prescription-only medicine and needs accurate dosing, it always follows a consultation with our prescriber, who will confirm it is suitable for you.

Treatment time:

15 to 20 minutes

Downtime:

Minimal. Avoid strenuous exercise for the rest of the day.

Why jaw slimming works

The masseter is the muscle you use to chew, and in some people it is naturally large or has grown through clenching and grinding, widening the lower face. Easing the muscle with a prescription injectable allows it to reduce in bulk over the following weeks, so the jaw slims and any clenching often eases too. Because it uses a prescription-only medicine and needs accurate dosing, it always follows a consultation with our prescriber, who will confirm it is suitable for you.

Treatment time:

15 to 20 minutes

Downtime:

Minimal. Avoid strenuous exercise for the rest of the day.

What to Expect After Your Treatment

Stay upright for four hours, avoid rubbing the treated area, and skip strenuous exercise, alcohol and heat for the rest of the day so the product settles where it was placed. Full guidance is on our aftercare page.

When Will I See Results?

Gradually, over two to six weeks

How Long Can I Enjoy My Results?

4 to 6 months

How Many Treatments Will I Need?

Single treatment, sometimes repeated to build the effect

Is This Right For Me?

Suitable for healthy adults over 18 after a prescriber has assessed you. It is not appropriate during pregnancy or breastfeeding, or with certain neuromuscular conditions. Suitability is always confirmed at a face-to-face consultation. We do not treat under-18s.

Frequently Asked Questions (FAQ)

It uses a prescription injectable to ease the masseter muscle at the angle of the jaw, so it reduces in bulk over a few weeks and the lower face looks slimmer.
Often, yes. Because it eases the chewing muscle, it can ease clenching, grinding and the jaw tension that comes with them.
The slimming builds gradually over two to six weeks as the muscle reduces, so the change looks natural rather than sudden.
Usually 4 to 6 months. Repeating the treatment can build a longer-lasting reduction over time.
Only briefly. It involves a couple of small injections into the jaw muscle and takes just a few minutes.
Yes. This uses a prescription-only medicine, so treatment can only follow a face-to-face consultation with our prescriber.

Ready to feel your most confident?

Want a softer, slimmer jawline? Book a consultation with our prescriber to discuss whether jaw slimming is right for you.

Related Pages

Request A Consultation

Request an appointment using the form below and one of our team members will get back to you as soon as possible. 

This treatment uses a prescription-only medicine and can only follow a face-to-face consultation with our prescriber, who will assess your suitability and confirm whether treatment is appropriate. A consultation does not commit you to any procedure.

Request A Consultation

Request an appointment using the form below and one of our team members will get back to you as soon as possible. 

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