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 #1307:
Facial Slimming with Botox & Filler for Round FaceCase: 1 of 8
Case #1307
ABOUT OUR PATIENT
This gorgeous woman in her 30s came to Mabrie Facial Institute with an exciting goal—looking and feeling her absolute best for her upcoming wedding. While she already had a beautiful, youthful appearance, she wanted a touch of refinement to ensure she looked radiant, sculpted, and camera-ready on her big day. Her main pri... Read More
This gorgeous woman in her 30s came to Mabrie Facial Institute with an exciting goal—looking and feeling her absolute best for her upcoming wedding. While she already had a beautiful, youthful appearance, she wanted a touch of refinement to ensure she looked radiant, sculpted, and camera-ready on her big day. Her main pri... Read More
Case #1314:
Masseter Botox, Chin & Jawline Filler for Round FaceCase: 2 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 #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 #854:
i360 Full Face with Facial SlimmingCase: 4 of 8
Case #854
ABOUT OUR PATIENT
Let me introduce you to our delightful 35-year-old patient, who exudes vibrancy and charm. She grappled with the frustration of a square-shaped face, a feature she felt was exacerbated by the persistent tension she held in her jaw. Years of clenching and grinding her teeth had inadvertently sculpted her masseter muscles... Read More
Let me introduce you to our delightful 35-year-old patient, who exudes vibrancy and charm. She grappled with the frustration of a square-shaped face, a feature she felt was exacerbated by the persistent tension she held in her jaw. Years of clenching and grinding her teeth had inadvertently sculpted her masseter muscles... Read More
Case #1146:
Facial Slimming with Masseter Botox and Chin FillerCase: 5 of 8
Case #1146
ABOUT OUR PATIENT
In her 20s, this patient was concerned about fullness along the lower face caused by overactive jaw muscles. Frequent teeth grinding and jaw clenching had led to enlarged masseter muscles — the powerful muscles at the back of the jaw responsible for chewing. Beyond the physical discomfort and headaches this can cause, it... Read More
In her 20s, this patient was concerned about fullness along the lower face caused by overactive jaw muscles. Frequent teeth grinding and jaw clenching had led to enlarged masseter muscles — the powerful muscles at the back of the jaw responsible for chewing. Beyond the physical discomfort and headaches this can cause, it... Read More
Case #1315:
Facial Slimming with Botox & Filler for Round FaceCase: 6 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: 7 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 #1217:
Facial Slimming with Masseter BotoxCase: 8 of 8
Case #1217
ABOUT OUR PATIENTThis patient in his 20s came to Mabrie Facial Institute seeking relief from chronic jaw tension, clenching, and grinding caused by strong, overactive masseter muscles. The enlarged muscles also added noticeable width to his lower face, creating a squarer, slightly asymmetrical appearance. His goal was twofold: relieve... 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 #1135:
Jawline, Chin & Cheek Contouring with FillerCase: 1 of 8
Case #1135
ABOUT OUR PATIENTThis patient in his 20s wanted a stronger, more masculine chin and jawline with greater definition and structure throughout the lower face. The goal was not simply to add volume, but to refine his natural proportions and create a more sculpted, balanced appearance from every angle. MFI TREATMENT PLAN... Read More
Case #1196:
Jawline Contouring with Fillers & BotoxCase: 2 of 8
Case #1196
ABOUT OUR PATIENTThis patient in her 50s wanted greater definition through her jawline and lower face while maintaining a natural, feminine appearance. A longtime MFI patient, she began her journey with Dr. Mabrie through the Midface & Under Eye Package. As her treatment evolved, she trusted his eye to expand the plan using MFI’s i... 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 #1137:
i360˚ Full Face: Jawline, Perioral, Cheek & Under Eye FillerCase: 4 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 #1261:
1261: i360˚ Full Face: Jawline, Cheeks, Nose & Under Eye FillerCase: 5 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 #1274:
Jawline & Cheek Filler with Masseter Botox for Round FaceCase: 6 of 8
Case #1274
ABOUT OUR PATIENT
This patient in his 40s came to MFI wanting to create a more structured, masculine jawline. He felt that his lower face lacked definition, particularly along the jawline and chin, and that it contributed to an overall rounder facial appearance. His goal was to achieve a sharper profile and more balanced proportions — whil... Read More
This patient in his 40s came to MFI wanting to create a more structured, masculine jawline. He felt that his lower face lacked definition, particularly along the jawline and chin, and that it contributed to an overall rounder facial appearance. His goal was to achieve a sharper profile and more balanced proportions — whil... Read More
Case #999:
i360˚ Full Face: Jawline, Chin, Midface & Under Eye FillerCase: 7 of 8
Case #999
ABOUT THIS PATIENT
This vibrant woman in her 40s has always made an active lifestyle and fitness-oriented routine an essential part of her life. However, the inevitable signs of aging were starting to take a toll on her self-esteem. She noticed a general loss of volume in her face, particularly in her jawline. Her primary goal was to reg... Read More
This vibrant woman in her 40s has always made an active lifestyle and fitness-oriented routine an essential part of her life. However, the inevitable signs of aging were starting to take a toll on her self-esteem. She noticed a general loss of volume in her face, particularly in her jawline. Her primary goal was to reg... Read More
Case #1132:
i360˚ Full Face: Contouring the Jawline, Cheeks & NoseCase: 8 of 8
Case #1132
ABOUT OUR PATIENT
This patient in her 40s came to us seeking improved jawline definition, noticing a loss of structure and subtle indentations along the lower face that disrupted a smooth, contoured profile. Her goal was a clean, refined jawline, something that would restore youthful definition while still feeling natural and effortless. W... Read More
This patient in her 40s came to us seeking improved jawline definition, noticing a loss of structure and subtle indentations along the lower face that disrupted a smooth, contoured profile. Her goal was a clean, refined jawline, something that would restore youthful definition while still feeling natural and effortless. W... 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 #921:
i360˚ Full Face: Marionette Line ReductionCase: 1 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
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 #900:
i360˚ Full Face: Marionette Line ReductionCase: 4 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 #928:
i360˚ Full Face: Marionette Line ReductionCase: 5 of 8
Case #928
ABOUT OUR PATIENT
This gentleman traveled from Texas to Mabrie Facial Institute seeking comprehensive nonsurgical facial rejuvenation. Following significant weight loss and a previous mini facelift, he experienced facial volume loss and changes in skin support that made his lower face appear heavier and older than he felt. His primary conc... Read More
This gentleman traveled from Texas to Mabrie Facial Institute seeking comprehensive nonsurgical facial rejuvenation. Following significant weight loss and a previous mini facelift, he experienced facial volume loss and changes in skin support that made his lower face appear heavier and older than he felt. His primary conc... Read More
Case #1248:
Before and AfterCase: 6 of 8
Case #1248
ABOUT OUR PATIENTThis woman in her 50s came to Mabrie Facial Institute noticing deepening marionette lines and early jowling that were beginning to create heaviness around the mouth and lower face. Rather than simply filling individual lines, her goal was to restore a smoother, more supported lower-face contour while keeping her appear... Read More
Case #964:
Lower Face Filler Package: Reducing Marionette LinesCase: 7 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 #987:
Lower Face Filler Package: Reducing Marionette LinesCase: 8 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
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
What a great experience, as always. Rochelle, Lyndsey, Dr. Mabrie and the entire team were amazing....
I honestly wish my appointments were longer, because this is genuinely one of the nicest groups of professionals...
I have been Dr. Mabrie’s patient for two years and have had an absolute AMAZING experience in every...
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