Face & Anti-Ageing / Masseter Botox
Jaw Slimming & Bruxism Treatment
Soften · Relax · Refine
About this treatment
When Your Jaw Works Against You
If you wake up with a tight, aching jaw, suffer from headaches that begin at your temples, or have noticed your jawline appearing wider or more square over time, you may be experiencing bruxism — chronic teeth grinding or clenching, often without realising it.
At PHP Aesthetic-Wellness, we treat both the functional symptoms and the aesthetic impact in one elegant solution: a precisely dosed Botox injection into the masseter muscle that relaxes the jaw, eases grinding, and gradually refines the jawline.
For Women
The masseter treatment creates a softer, more oval facial contour — gently narrowing a jawline that has become square or heavy over time, and restoring a more delicate lower face proportion, while relieving jaw tension and headaches.
For Men
The result tends toward a more refined, controlled jawline — reducing excessive bulk while preserving the structured look that suits masculine facial proportions. Many men find the symptom relief from bruxism is the first and most welcome benefit.
Women
A Softer, More Oval Contour
The masseter treatment creates a softer, more oval facial contour — gently narrowing a jawline that has become square or heavy over time, and restoring a more delicate lower face proportion. For many women, this is combined with relief from jaw tension, morning headaches, and grinding that had gone undiagnosed for years.
Men
Refined. Structured. Never Overdone.
For men, the masseter treatment reduces excessive jaw bulk while preserving the structured look that suits masculine facial proportions. Many men come to us for the headaches and jaw soreness — and discover a cosmetic benefit they hadn't expected. Both outcomes are entirely valid, and every consultation is handled with complete discretion.
Understanding the cause
How Grinding Changes the Jawline
Bruxism causes the masseter muscle — the main chewing muscle at the back of the jaw — to enlarge through repeated overuse, much like any muscle exercised frequently. The result is a jawline that appears wider or bulkier than your natural bone structure, alongside symptoms that are often dismissed as unrelated.
Botox injected into the masseter addresses both concerns simultaneously. As the muscle gradually relaxes and reduces in size, the jawline softens into a more refined shape — while reduced clenching force eases jaw tension, grinding, and the headaches many people live with for years without ever connecting them to their jaw.
"Many patients come to us for the headaches and jaw soreness, and are genuinely surprised to discover there is a cosmetic benefit too. Others come purely for the jawline. Either reason is entirely valid — and both are addressed with the same treatment, tailored to the individual."
Dr Philippe Hamida-Pisal · PHP Aesthetic-Wellness, 22 Harley StreetSigns & Symptoms
Signs You May Be Grinding
Waking up with a tight, sore, or aching jaw
Headaches that begin at the temples, particularly in the morning
A jawline that has gradually appeared wider or more square over time
Tooth wear, sensitivity, or a dentist flagging signs of grinding
Clicking, tightness, or discomfort in the jaw joint itself
A partner mentioning that you grind your teeth at night
The dual benefit
What Masseter Botox Addresses
The Cosmetic Result
As the masseter relaxes and reduces in bulk, the jawline gradually softens — moving from a wide, square shape toward a more oval, refined contour. No surgery. No alteration to the underlying bone structure, which remains completely untouched.
The Functional Result
Reduced clenching force from the masseter eases jaw tension, grinding intensity, and associated headaches — typically the first improvement patients notice, ahead of any visible change to the jawline itself.
Your journey
What to Expect
Weeks 1–2
Functional symptoms — jaw tension, clenching, headaches — often begin to ease first, ahead of any visible cosmetic change.
Weeks 4–6
The slimming effect becomes visible as the masseter muscle gradually reduces in size.
Weeks 8–12
The fullest cosmetic result is reached, with the jawline settled into its final, more refined contour. Repeat treatment is typically recommended every 4–6 months.
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Begin Your Journey
PHP Aesthetic-Wellness · The French Touch · 22 Harley Street, London
22 Harley Street, Suite 8, London W1G 9PL · +44 (0)7917 785 695 · contact@phpaesthetic.com