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wide jaw botox london treatment

Wide Jaw: Causes and treatments

A wide jaw in women can be seen as a masculine or unattractive trait, manifesting as a large, square lower jaw.

How to reduce a wide jaw?

Effective methods for reducing a wide jaw involve addressing the combination of bone and muscle factors. One primary cause is a naturally large jaw bone, known as the mandible, which can be present from birth or develop due to conditions like acromegaly. Additionally, habits like regularly clenched teeth can contribute to stronger jaw muscles and a wider appearance.


A wide jaw can impact the overall facial shape, potentially giving a rounder or more masculine appearance. If you have been exploring different approaches to minimise its impact, our dedicated team at PHI Clinic is here to assist you. We provide expert guidance and proven approaches get a better jawline, helping you achieve a more harmonious facial appearance.

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Is chewing good for your jawline?

The size of the masseter muscle, responsible for chewing, can vary based on congenital or acquired factors. With exercise, such as chewing gum, teeth clenching, or bruxism (excessive teeth grinding), the muscle can increase in size. This leads to an acquired wide jaw. On the other hand, a congenital wide jaw is present throughout life and may worsen with exercise

At PHI Clinic, we use Botox to effectively relax and rejuvenate overdeveloped facial muscles, resulting in a beautifully reshaped face. However, it is important to understand that an enlarged mandible, primarily caused by bone structure rather than muscle, cannot be treated with this specific method. When a wide jaw is a combination of an enlarged mandible and oversized masseter muscles, our treatments can significantly mitigate the condition and enhance facial harmony.

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Safe and effective treatment

Your safety is our top priority and making our patients feel welcomed and reassured when entering PHI Clinic. To ensure maximum standard of patient care, all of our treatments are only ever carried out by our experienced and highly qualified team, who receive regular in-house and external training from industry experts. 

At PHI Clinic we do not offer same day treatment as initial consultation to ensure patients have time to reflect on their bespoke treatment plan before choosing to proceed. 

inside PHI Clinic London

Wide jaw frequently asked questions


PHI Clinic
102 Harley Street,
W1G 7JB,
United Kingdom

Tel: +44 7883 317963

Opening Hours

Monday & Tuesday - 9:30am to 6:00pm
Wednesday & Thursday - 9:30am to 8:00pm
Friday - 9:30am to 5:30pm
Saturday & Sunday - Closed

Opening times can change, if your appointment is outside of these times please contact the clinic for confirmation.