Evaluate masseter muscle size, bite dynamics, and tension-related symptoms.
Receive physician-guided Masseter Botox treatment with Marie V. Hayag, MD, in a private Upper East Side dermatology practice focused on facial balance, jawline refinement, and relief from clenching-related discomfort. Treatment is performed with precise, evidence-based techniques designed to maintain natural facial movement.



Evaluate masseter muscle size, bite dynamics, and tension-related symptoms.
Soften a bulky or square jawline while maintaining natural facial proportions.
Reduce chronic muscle tension through carefully dosed, dermatologist-directed treatment.
Masseter Botox is a non-surgical, physician-guided treatment that uses botulinum toxin to relax overactive masseter muscles along the jawline. By reducing excessive muscle contraction, the treatment can improve jaw discomfort and soften the appearance of a wide or bulky lower face.
Masseter Botox may be used for both functional and cosmetic purposes, depending on individual needs and anatomy. Treatment selection and dosing are determined during a physician consultation.
At Marie Hayag MD, Masseter Botox is performed by a board-certified dermatologist with advanced understanding of facial anatomy and neuromuscular balance. The masseter muscles play a critical role in chewing, jaw alignment, and facial shape, requiring expert evaluation and conservative dosing.
Each patient undergoes a detailed assessment of jaw muscle activity, facial symmetry, and functional concerns such as clenching or grinding. This physician-led approach ensures treatment is both safe and aesthetically balanced.
Treatment plans are individualized to support facial harmony, comfort, and predictable outcomes.
Overactivity of the masseter muscles can influence both facial appearance and jaw comfort. When these muscles become enlarged or overly tense, patients may notice changes in jawline shape as well as symptoms related to muscle strain.
Masseter Botox may help address concerns such as:
During consultation, the underlying cause of these symptoms is evaluated to determine whether neuromodulator treatment is appropriate.
Results from Masseter Botox develop gradually as the treated muscles begin to relax. Most patients do not see immediate changes in jawline contour because the medication works by slowly reducing excessive muscle activity over time.
Initial muscle relaxation typically begins within one to two weeks after treatment. Improvements in jaw tension or clenching symptoms may become noticeable during this period. Visible refinement of the jawline generally develops over several weeks as the masseter muscles decrease in size.
Full results are usually observed within four to eight weeks. As the muscles become less active, patients often notice both improved comfort and a softer lower facial contour while normal chewing function is preserved.
The duration of results varies by individual but commonly lasts three to six months before muscle activity gradually returns.
When performed by an experienced dermatologist, Masseter Botox can provide both aesthetic and functional improvements.
Potential benefits include:
The goal of treatment is to maintain natural facial movement while improving comfort and overall facial balance.
Excellent rating
Based on 110 reviewsTrustindex verifies that the original source of the review is Google. Dr. Hayag has been my excellent dermatologist for more than 20 years! I won’t reveal my secrets but I will recommend her highly! Phyllis LeeTrustindex verifies that the original source of the review is Google. I had an amazing experience with Dr. Hayag! I went in for a preventative skin check and botox. She is incredibly thorough, knowledgeable, and precise. I can't wait for my next visit! Rachel AncelTrustindex verifies that the original source of the review is Google. Dr. Hayag has been my dermatologist since I was young, and I truly cannot recommend her highly enough. She treated my acne when I was younger, and I have continued to see her over the years for any skin concerns that come up. She is always incredibly thorough, knowledgeable, and caring, and I completely trust her. On top of that, her entire staff is so warm, kind, and lovely, which makes every visit such a positive experience. I’m so grateful to have had her as my dermatologist for so many years. KatieTrustindex verifies that the original source of the review is Google. Landy AguiarTrustindex verifies that the original source of the review is Google. My entire family has been seeing Dr Hayag for over a decade for general dermatology. She’s extremely knowledgeable and provides the best level of care and advice. She’s been equally good for my kids as teens and young adults, focusing on prevention and healthy skin habits. The entire staff is kind and friendly, keeps appointments on time and has great communication. I’m a patient for life - a wonderful doctor and practice. Patricia FalconiTrustindex verifies that the original source of the review is Google. Dr. Hayag is an amazing doctor. Very caring and gentle with her patients. I have been with her for years and will continue to be with her. I highly recommend her. Ann NellissenTrustindex verifies that the original source of the review is Google. Everyone in the office is so kind and sweet to me I appreciate how they take their time to address my concerns mimi chungTrustindex verifies that the original source of the review is Google. My visit to Dr. Hayag’s Office was superb. No waiting, lovely professional help and Dr. Hayag with an easy confident manner, artistic eye and quick hands managed to make my experience the best ever. I’m so grateful to be in her care. mary ConleyTrustindex verifies that the original source of the review is Google. ⭐️⭐️⭐️⭐️⭐️ Dr. Hayag is an extraordinary dermatologist whose expertise, compassion, and commitment to excellence are unmatched. I have been under her care for over 15 years, and she remains the only dermatologist I trust implicitly. I travel from out of state, over two hours each way for my appointments, which speaks volumes about the caliber of her care. Dr. Hayag’s mastery of dermatology is second to none. She stays at the forefront of innovation, continually advancing her practice by attending leading dermatology conferences and incorporating the most cutting-edge techniques and treatments. Yet what truly distinguishes her is not just her knowledge, but her humanity. She takes the time to listen, to educate, and to ensure her patients feel understood and empowered in every decision. Her genuine care and personal attention are evident in every interaction. She is meticulous, insightful, and wholly dedicated to achieving the best outcomes for her patients. Her office reflects her professionalism and taste, immaculate, serene, and inviting. Her staff embodies the same warmth and excellence she brings to her work, creating an environment that feels both luxurious and deeply personal. Dr. Hayag represents the gold standard in dermatology: exceptional skill, unwavering integrity, and a sincere devotion to her patients’ well-being. I highly and wholeheartedly recommend her to anyone seeking the very best in dermatologic care. Mary Ann MTrustindex verifies that the original source of the review is Google. My favorite mult-generational doctor! A long-time patient, I trust her judgment and skills so much that I've sent my daughters to Dr. Hayag too! Bee-Ann Benson
Treatment is tailored to each patient’s facial anatomy, muscle activity, and functional concerns. The process is designed to ensure safe treatment planning and predictable results.
The size and activity of the masseter muscles are carefully assessed along with bite dynamics, facial symmetry, and symptoms such as clenching or grinding.
Based on the evaluation, a precise dosing strategy is developed to address both aesthetic goals and muscle tension while maintaining normal jaw function.
Small amounts of botulinum toxin are injected directly into specific areas of the masseter muscles using controlled technique. The treatment typically takes 15–30 minutes.
Most patients return to normal activities immediately after treatment. Mild tenderness at injection sites may occur temporarily. Results develop gradually as the treated muscles relax, with follow-up visits used to assess response and plan maintenance when needed.
Masseter Botox is often recommended for individuals whose jaw muscles contribute to discomfort or facial width.
You may be a good candidate if you:
A consultation is necessary to confirm candidacy and develop a treatment plan suited to your goals.
At Marie Hayag MD, Masseter Botox treatment is performed with a careful focus on facial anatomy, muscle balance, and natural-looking results. Each treatment plan is developed following a detailed evaluation of jaw function and facial proportions.
Patients visiting our Upper East Side dermatology practice receive individualized care designed to improve both jaw comfort and lower facial contour.
If you are experiencing jaw clenching, facial tension, or a prominent jawline, our team can help you explore safe and effective treatment options.
To schedule your consultation, call 212.722.2055 or book online. Our practice proudly serves patients throughout Manhattan and New York City seeking expert Masseter Botox treatment.
Masseter Botox may be used for both aesthetic jawline refinement and functional relief from jaw clenching or teeth grinding (bruxism).
No. When administered with appropriate dosing and placement, the treatment relaxes excessive muscle activity without interfering with normal chewing function.
Results typically last three to six months, depending on the strength of the masseter muscles and individual metabolism.
Most patients resume normal activities immediately after the procedure.
Yes. Treatment is designed to subtly soften the jawline while maintaining natural facial proportions and movement.
Discomfort is minimal and brief, often described as a small pinch during injection.
Yes. It can be combined with other injectable or skin treatments as part of a comprehensive aesthetic plan.
Schedule a personalized consultation with Marie Hayag, MD and her experienced team to receive physician-guided Masseter Botox treatment tailored to your facial anatomy, jaw function, and aesthetic goals.

212.722.2055