Chin & Jawline Fillers & BOTOX: A Guide to Facial Contouring for Masculinization and Feminization
September 19, 2024
Whether you’re aiming for a more masculine or feminine appearance, fillers can help you reach your…
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Mabrie Facial Institute
166 Geary Street
Floor 1300
San Francisco, CA 94108
Phone: (415) 445-9513
Text/SMS: (866) 618-9459
Monday–Friday 8 a.m.–5:30 p.m.
Celebrities and influencers have embraced injectables for sculpting the ideal masculine or feminine jawline. Mabrie Facial Institute in San Francisco is the trusted authority for face-slimming BOTOX and jawline filler. Whether you want a sharper, more defined jawline, or to change the overall width of your face, we’ve got you covered! Learn more by visiting the following pages.
Masseter BOTOX for Face Slimming
If you have a square or bulky lower face, forget about buccal fat removal surgery. You may have an overdeveloped masseter muscle that’s adding volume around your jawline. Our Injectors can use neuromodulators like BOTOX to shrink this muscle and slim the lower face, creating more of a V-shape—all without surgery.
Our Favorite
Facial Slimming
Before AND After Photos
Case #1315:
Facial Slimming with Botox & Filler for Round FaceCase: 1 of 8
Case #1315
ABOUT OUR PATIENT
This gorgeous patient in her mid-20's came to Mabrie Facial Institute with a goal of slimming her lower face for a more contoured, feminine appearance. She felt that her jawline appeared wider and more square than she preferred, largely due to years of clenching and grinding her teeth. Her main concern was softening the l... Read More
This gorgeous patient in her mid-20's came to Mabrie Facial Institute with a goal of slimming her lower face for a more contoured, feminine appearance. She felt that her jawline appeared wider and more square than she preferred, largely due to years of clenching and grinding her teeth. Her main concern was softening the l... Read More
Case #1164:
i360 Full Face with Facial SlimmingCase: 2 of 8
Case #1164
ABOUT OUR PATIENT
This confident patient in her late 30s was concerned about a square lower face, primarily due to tense and overactive masseter muscles. Along with affecting her appearance, the muscle tension was causing discomfort. She hoped to achieve a slimmer, more contoured facial shape — without surgery.MFI TREATMENT PLAN
... Read More
This confident patient in her late 30s was concerned about a square lower face, primarily due to tense and overactive masseter muscles. Along with affecting her appearance, the muscle tension was causing discomfort. She hoped to achieve a slimmer, more contoured facial shape — without surgery.MFI TREATMENT PLAN
... Read More
Case #662:
Facial Slimming with Masseter BotoxCase: 3 of 8
Case #662
ABOUT OUT PATIENT
This patient in her mid 30’s, noticed the shape of her face looked very athletic and boxy. She wanted to soften her features to have a more heart-shaped face and create a subtle contour to compliment the project of her cheeks. MFI TREATMENT PLAN
Our injector used BOTOX to the masseter muscles, whi... Read More
This patient in her mid 30’s, noticed the shape of her face looked very athletic and boxy. She wanted to soften her features to have a more heart-shaped face and create a subtle contour to compliment the project of her cheeks. MFI TREATMENT PLAN
Our injector used BOTOX to the masseter muscles, whi... Read More
Case #1146:
Facial Slimming with Masseter Botox and Chin FillerCase: 4 of 8
Case #1146
ABOUT OUR PATIENT
Many of our patients come in bothered by frequent grinding of the teeth and clenching of the jaw. This can be caused by overdeveloped masseter muscles, the large facial muscles towards the back of each side of the jaw. BOTOX is an easy, non-surgical method to reduce the size of one’s masseters and bring relief.Read More
Many of our patients come in bothered by frequent grinding of the teeth and clenching of the jaw. This can be caused by overdeveloped masseter muscles, the large facial muscles towards the back of each side of the jaw. BOTOX is an easy, non-surgical method to reduce the size of one’s masseters and bring relief.
Case #1307:
Facial Slimming with Botox & Filler for Round FaceCase: 5 of 8
Case #1307
ABOUT OUR PATIENT
A woman in her 30s visited Mabrie Facial Institute in San Francisco to prepare for her upcoming wedding. She desired a more refined, youthful appearance, focusing on facial slimming and subtle enhancements to ensure she looked her best on her special day.MFI TREATMENT PLAN
The primary goal was to slim the j... Read More
A woman in her 30s visited Mabrie Facial Institute in San Francisco to prepare for her upcoming wedding. She desired a more refined, youthful appearance, focusing on facial slimming and subtle enhancements to ensure she looked her best on her special day.MFI TREATMENT PLAN
The primary goal was to slim the j... Read More
Case #1314:
Masseter Botox, Chin & Jawline Filler for Round FaceCase: 6 of 8
Case #1314
ABOUT OUR PATIENT
This patient, in her early 30s, came to MFI seeking a refined, heart-shaped facial contour. She felt her lower cheeks and jawline made her face appear heavier and wider than desired. Her top priority was finding an expert who could evaluate her full facial balance — not just treat one area — and sculpt a result that felt... Read More
This patient, in her early 30s, came to MFI seeking a refined, heart-shaped facial contour. She felt her lower cheeks and jawline made her face appear heavier and wider than desired. Her top priority was finding an expert who could evaluate her full facial balance — not just treat one area — and sculpt a result that felt... Read More
Case #702:
Facial Slimming with Masseter BotoxCase: 7 of 8
Case #702
ABOUT OUR PATIENT
This beautiful patient in her early 30’s, experienced continuous jaw tension from grinding her teeth. This led to sleep disruption and created bulky masseter muscle bulk creating a boxy/square facial shape.MFI TREATMENT PLAN
BOTOX was used to treat her masseter muscles (our Facial Slimming treatment).... Read More
This beautiful patient in her early 30’s, experienced continuous jaw tension from grinding her teeth. This led to sleep disruption and created bulky masseter muscle bulk creating a boxy/square facial shape.MFI TREATMENT PLAN
BOTOX was used to treat her masseter muscles (our Facial Slimming treatment).... Read More
Case #803:
Facial Slimming with Masseter Botox and Jawline FillerCase: 8 of 8
Case #803
ABOUT OUR PATIENT
This busy mom wanted to contour/slim her face and keep looking fresh and vibrant.
MFI TREATMENT PLAN
Our Facial Slimming with BOTOX was a perfect procedure to get started. To amplify her results, we added fillers to her cheeks, chin, and nose. BOTOX to the upper face (forehead, glabella, and c... Read More
This busy mom wanted to contour/slim her face and keep looking fresh and vibrant.
MFI TREATMENT PLAN
Our Facial Slimming with BOTOX was a perfect procedure to get started. To amplify her results, we added fillers to her cheeks, chin, and nose. BOTOX to the upper face (forehead, glabella, and c... Read More
Keep in mind that each patient is unique and your results may vary.
Jawline Filler for Contouring & Definition
Sculpting a more defined, youthful, masculine, or feminine jawline takes excellent technique applied over more than one appointment. Our patients love how jawline filler from MFI adds definition, enhances shape, balances features, and even helps with jowling. Our Jawline & Chin Contouring package is one of our most popular services, thanks to its transformative results.
Our Favorite
Jawline Definition
Before AND After Photos
Case #1261:
1261: i360˚ Full Face: Jawline, Cheeks, Nose & Under Eye FillerCase: 1 of 8
Case #1261
ABOUT OUR PATIENT
This woman in her 60s originally came to MFI hoping to address a few key concerns: under-eye hollowness, marionette lines, and subtle contouring of her nose. During her consultation, our team recommended a full-face approach to achieve balanced, natural-looking results — and included jawline definition as a foundational p... Read More
This woman in her 60s originally came to MFI hoping to address a few key concerns: under-eye hollowness, marionette lines, and subtle contouring of her nose. During her consultation, our team recommended a full-face approach to achieve balanced, natural-looking results — and included jawline definition as a foundational p... Read More
Case #1137:
i360˚ Full Face: Jawline, Perioral, Cheek & Under Eye FillerCase: 2 of 8
Case #1137
ABOUT OUR PATIENT
In her 40s and passionate about wellness, this patient wanted her appearance to reflect the strength and discipline she’d built through years of dedication. Her primary concern was a lack of definition along the jawline, where early volume loss had softened her angles and reduced contour in the lower face. She wante... Read More
In her 40s and passionate about wellness, this patient wanted her appearance to reflect the strength and discipline she’d built through years of dedication. Her primary concern was a lack of definition along the jawline, where early volume loss had softened her angles and reduced contour in the lower face. She wante... Read More
Case #726:
Jawline, Cheek & Nose Contouring with FillerCase: 3 of 8
Case #726
ABOUT OUR PATIENT
This handsome patient in his mid-30s wanted a more athletic-looking, squared chin and angular jawline to compliment his face whether clean-shaven or with facial hair. MFI TREATMENT PLAN
Our Chin & Jawline Contouring package was the perfect fit. Over 2 sessions, we sculpted the chin and jawline... Read More
This handsome patient in his mid-30s wanted a more athletic-looking, squared chin and angular jawline to compliment his face whether clean-shaven or with facial hair. MFI TREATMENT PLAN
Our Chin & Jawline Contouring package was the perfect fit. Over 2 sessions, we sculpted the chin and jawline... Read More
Case #1042:
i360˚ Full Face: Jawline, Nose & Midface FillerCase: 4 of 8
Case #1042
ABOUT OUR PATIENT
Let's dive into the journey of a vibrant woman in her late 20s who entrusted Dr. Mabrie with her mission for a more defined and radiant jawline. Faced with the disheartening reality of lacking distinction along her jaw, she made the bold decision to seek out the expertise of Dr. Mabrie, renowned for his mastery in f... Read More
Let's dive into the journey of a vibrant woman in her late 20s who entrusted Dr. Mabrie with her mission for a more defined and radiant jawline. Faced with the disheartening reality of lacking distinction along her jaw, she made the bold decision to seek out the expertise of Dr. Mabrie, renowned for his mastery in f... Read More
Case #1127:
Jawline Contouring with FillerCase: 5 of 8
Case #1127
ABOUT OUR PATIENT
This female patient in her late 30s didn’t look as youthful as she felt. Her jawline had lots of indentations which contributed to an aged appearance. MFI TREATMENT PLAN
Our injectors at MFI addressed the patient’s concern by using dermal fillers to fill in the empty spaces in her jaw... Read More
This female patient in her late 30s didn’t look as youthful as she felt. Her jawline had lots of indentations which contributed to an aged appearance. MFI TREATMENT PLAN
Our injectors at MFI addressed the patient’s concern by using dermal fillers to fill in the empty spaces in her jaw... Read More
Case #1132:
i360˚ Full Face: Contouring the Jawline, Cheeks & NoseCase: 6 of 8
Case #1132
ABOUT THIS PATIENT
Our lovely patient in her late 30s was lacking jawline definition and had some indentations along the lower face. She wanted a quick, non-surgical solution.MFI TREATMENT PLAN
Dr. Mabrie administered a supportive dermal filler all along the lower face to build jawline definition and fill in indentations.T... Read More
Our lovely patient in her late 30s was lacking jawline definition and had some indentations along the lower face. She wanted a quick, non-surgical solution.MFI TREATMENT PLAN
Dr. Mabrie administered a supportive dermal filler all along the lower face to build jawline definition and fill in indentations.T... Read More
Case #1196:
Jawline Contouring with Fillers & BotoxCase: 7 of 8
Case #1196
ABOUT OUR PATIENT
You can’t overstate the importance of a well-defined jawline. A lower face that blends into the neck can give a tired, aged, and sometimes even bloated appearance. On the other hand, a well-contoured jawline that creates a distinct border between the face and neck can make you look young and fit.This woman in her e... Read More
You can’t overstate the importance of a well-defined jawline. A lower face that blends into the neck can give a tired, aged, and sometimes even bloated appearance. On the other hand, a well-contoured jawline that creates a distinct border between the face and neck can make you look young and fit.This woman in her e... Read More
Case #1330:
i360˚ Full Face: Jawline, Chin, Under Eyes, Midface, Cheeks, Nose & Lip FillerCase: 8 of 8
Case #1330
ABOUT OUR PATIENT
This professional dancer began her aesthetic journey with subtle enhancements to her lips, chin, and nose. As she grew more confident in the results, she chose to refine her jawline and balance the lower face for more camera-ready definition. Her goal: keep her natural features intact while elevating her look with precisi... Read More
This professional dancer began her aesthetic journey with subtle enhancements to her lips, chin, and nose. As she grew more confident in the results, she chose to refine her jawline and balance the lower face for more camera-ready definition. Her goal: keep her natural features intact while elevating her look with precisi... Read More
Keep in mind that each patient is unique and your results may vary.
Marionette Lines/Jowling
Marionette lines—vertical creases that run down to your chin from the corners of your mouth—and jowls—excess skin below the jawline—almost always go together. At MFI, we treat the marionette line/jowl combo with a comprehensive approach that includes adding support in surrounding areas. This produces seamless, natural-looking results and a more youthful jawline.
Our Favorite
Marionette Lines & Jowling
Before AND After Photos
Case #964:
Lower Face Filler Package: Reducing Marionette LinesCase: 1 of 8
Case #964
ABOUT THIS PATIENT
Meet our 49-year-old patient who was on a mission to get rid of those marionette lines and jowls. MFI TREATMENT PLAN
We brought in hyaluronic filler to save the day. He couldn't be happier – his face is now smooth, defined, and full of symmetry!THE OUTCOME
Those marionette lines a... Read More
Meet our 49-year-old patient who was on a mission to get rid of those marionette lines and jowls. MFI TREATMENT PLAN
We brought in hyaluronic filler to save the day. He couldn't be happier – his face is now smooth, defined, and full of symmetry!THE OUTCOME
Those marionette lines a... Read More
Case #835:
Lower Face Filler Package: Reducing Marionette LinesCase: 2 of 8
Case #835
ABOUT OUR PATIENT
This lovely patient in her 60s came to us concerned with sagging in her lower face, particularly the appearance of jowls and heaviness around her mouth. She wanted to smooth these changes and restore a more youthful contour to her jawline without surgery.MFI TREATMENT PLAN
As part of her customized rejuven... Read More
This lovely patient in her 60s came to us concerned with sagging in her lower face, particularly the appearance of jowls and heaviness around her mouth. She wanted to smooth these changes and restore a more youthful contour to her jawline without surgery.MFI TREATMENT PLAN
As part of her customized rejuven... Read More
Case #511:
Single Area Marionette Lines Filler TreatmentCase: 3 of 8
Case #511
MFI TREATMENT PLANShadows and lines around the mouth, called marionette lines occur with age as we lose fat in our face. We used Juvederm Ultra to soften these signs of aging. THE OUTCOMEThe patient is shown right after her treatment. Read More
Case #928:
i360˚ Full Face: Marionette Line ReductionCase: 4 of 8
Case #928
ABOUT OUR PATIENT
This gentleman in his late 50s flew to the Bay Area all the way from Texas for Dr. Mabrie’s lower face rejuvenation treatment. He was bothered by the pouches and creases around the corners of his mouth, and he had sagging skin and jowling due to aging as well as recent weight loss.MFI TREATMENT PLAN
Dr... Read More
This gentleman in his late 50s flew to the Bay Area all the way from Texas for Dr. Mabrie’s lower face rejuvenation treatment. He was bothered by the pouches and creases around the corners of his mouth, and he had sagging skin and jowling due to aging as well as recent weight loss.MFI TREATMENT PLAN
Dr... Read More
Case #987:
Lower Face Filler Package: Reducing Marionette LinesCase: 5 of 8
Case #987
ABOUT OUR PATIENT
Our patient in her 60s wanted to smooth out jowls and marionette lines that had crept in over the years. Her concerns were mainly centered around the shadowing and lines that were aging her face.MFI TREATMENT PLAN
To address her concerns Dr. Mabrie used filler to restore youthful volume and smooth out the jo... Read More
Our patient in her 60s wanted to smooth out jowls and marionette lines that had crept in over the years. Her concerns were mainly centered around the shadowing and lines that were aging her face.MFI TREATMENT PLAN
To address her concerns Dr. Mabrie used filler to restore youthful volume and smooth out the jo... Read More
Case #1248:
Before and AfterCase: 6 of 8
Case #1248
ABOUT OUR PATIENT
This woman in her 50s came to Mabrie Facial Institute concerned about early jowling and deepening marionette lines, which were creating heaviness through the lower face. Her goal was to soften these shadows and restore a smoother, more youthful jawline while still looking completely natural.Her transformation refle... Read More
This woman in her 50s came to Mabrie Facial Institute concerned about early jowling and deepening marionette lines, which were creating heaviness through the lower face. Her goal was to soften these shadows and restore a smoother, more youthful jawline while still looking completely natural.Her transformation refle... Read More
Case #900:
i360˚ Full Face: Marionette Line ReductionCase: 7 of 8
Case #900
ABOUT OUR PATIENT
This vibrant Grandmother of 12 (yes - 12!) and former fitness model wanted a non-surgical approach to rejuvenate her appearance and recapture her youthful glow. Over time, the natural aging process became more apparent, accentuating the loss of facial fat and skin elasticity around her lower face, especially her jowls and... Read More
This vibrant Grandmother of 12 (yes - 12!) and former fitness model wanted a non-surgical approach to rejuvenate her appearance and recapture her youthful glow. Over time, the natural aging process became more apparent, accentuating the loss of facial fat and skin elasticity around her lower face, especially her jowls and... Read More
Case #921:
i360˚ Full Face: Marionette Line ReductionCase: 8 of 8
Case #921
ABOUT OUR PATIENT
This patient in her 40s came to us wanting a refreshed, more youthful appearance — specifically concerned with heaviness in her lower face, including marionette lines and early jowling. These changes around the mouth and chin were becoming more noticeable, and she wanted to smooth them out while also lifting and contourin... Read More
This patient in her 40s came to us wanting a refreshed, more youthful appearance — specifically concerned with heaviness in her lower face, including marionette lines and early jowling. These changes around the mouth and chin were becoming more noticeable, and she wanted to smooth them out while also lifting and contourin... Read More
Keep in mind that each patient is unique and your results may vary.
The MFI Advantage
MFI focuses exclusively on injectables and has set the bar in the art and science of fillers for more than 15 years. Dr. Mabrie, trained as a facial plastic surgeon, has dedicated thousands of hours to refining the most innovative, effective, and safe techniques for injectables. There is no other practice in the Bay Area with the level of experience, education, and passion for injectables you’ll find at MFI.
Schedule MeWe’d Love To See You
If you’d like to speak to one of the expert Injectors at MFI about creating lips you love or any other facial rejuvenation or contouring concerns, request a consultation online, or call us at (415) 445-9513 to schedule your appointment. If you’ll be visiting us from outside the area, you’re in good company, and our Fly in for Your Procedure page was created just for you to help make planning your trip as smooth as possible.
Reviewed for clinical accuracy by Dr. David Mabrie on December 17th, 2025.
A Reputation Built on Results
Always a great experience! Fun and clean environment, everyone is friendly. Always super happy with...
My experience at Mabrie Facial Institute was exceptional from the moment I arrived. I was warmly welcomed...
The staff and Dr. Mabrie were great. They were friendly, welcoming and answered all of my questions....
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