Square Jaw

Square jaw or jawline is a condition where the lower jaw appears square or prominent. It is a common aesthetic concern among both men and women. Some people find a square jawline attractive, while others may feel it gives them a masculine or heavy appearance. Square jaw can be caused by several factors, such as genetics, aging, or teeth grinding. Fortunately, there are various treatments available to improve the appearance of a square jawline.




Hyperpigmentation is a common condition that occurs when the skin produces excess melanin, resulting in dark patches on the skin. This can be caused by a variety of factors, including sun exposure, hormonal changes, and skin injuries. Our clinic offers a range of treatments to help address hyperpigmentation, including chemical peels, laser therapy, and topical treatments such as hydroquinone, retinoids and oral lightening medications.


Melasma is a specific type of hyperpigmentation that is often triggered by hormonal changes, such as those that occur during pregnancy or with the use of certain medications. Melasma can be particularly challenging to treat, but our clinic has experience in managing this condition with a variety of treatments, including topical lightening agents, chemical peels, laser therapy and oral lightening medications

In addition to these specific conditions, our clinic also offers treatments for more general concerns with uneven skin tone and texture.

Our team is dedicated to helping you achieve your aesthetic goals in a safe and effective manner. We will work with you to develop a customized treatment plan that addresses your specific concerns and helps you achieve the clear, radiant skin you desire.

If you are struggling with pigmentation concerns, contact our clinic today to schedule a consultation and learn more about our treatment options. We look forward to helping you achieve your best possible skin! 

Causes of

Square Jaw

There are various causes of square jawline, including genetics, bone structure, muscle development, and teeth grinding. Genetics plays a significant role in the shape of the jawline, as it determines the size and shape of the facial bones. People with larger or wider jaws are more likely to have a square jawline. Additionally, muscle development can also contribute to square jawline, especially in people who clench their jaw or grind their teeth, which can lead to the enlargement of the masseter muscles. Lastly, aging can also cause changes in the jawline, such as bone loss or sagging skin, which can contribute to a square appearance.


Options for Square Jaw

There are various treatments available to improve the appearance of square jawline, depending on the cause and severity of the condition.

Neurotoxin Injection

Neurotoxin injection is a popular treatment for square jawline caused by enlarged masseter muscles. Neurotoxin is injected directly into the masseter muscles, which relaxes them, reducing their size and creating a slimmer jawline. The effects of Neurotoxin injection usually last for 3-6 months, and repeat treatments are necessary to maintain the results.

Dermal fillers

Dermal fillers can be used to create a more balanced, proportional jawline by adding volume to specific areas. Fillers can also be used to smooth out wrinkles and fine lines, giving the face a more youthful appearance. The effects of dermal fillers typically last for 6-12 months.

At Dr. KW Chan

Square jawline can be a source of self-consciousness for many people, but there are several treatments available to improve its appearance. Neurotoxin injection and dermal fillers are all effective treatments for square jawline, and your doctor can help you choose the best option based on your needs and goals. With the right treatment, you can achieve a more balanced, feminine jawline and feel more confident in your appearance.

Frequently Asked Questions

A square jawline can be caused by genetics, bone structure, muscle development, and aging. Some people are born with a larger or wider jawbone, while others develop a square jawline over time due to teeth grinding or muscle enlargement.

Both men and women can have a square jawline, but it is more commonly associated with men. Women tend to prefer a more feminine, oval-shaped face, which a square jawline may detract from.

Neurotoxin injection is a popular treatment for reducing the size of masseter muscles. The injection relaxes the muscles, which reduces their size and creates a slimmer jawline.

The effects of Neurotoxin injection typically last for 3-6 months, and repeat treatments are necessary to maintain the results.

Scroll to Top