Masculinizing the Brow: Using Fillers or Implants for a Stronger Supraorbital Ridge

The supraorbital ridge is one of the most defining features of a masculine face. A prominent brow bone creates a stronger, more angular appearance across the upper face, and for many people seeking facial masculinization, augmenting this area is a top priority. Whether you are a transgender man exploring gender-affirming options, a cisgender man looking to enhance your facial structure, or a non-binary individual seeking a more masculine brow, there are two primary approaches: dermal fillers and surgical implants.

Each method has distinct advantages, limitations, and trade-offs. Fillers offer a non-surgical entry point with minimal downtime, while custom implants deliver permanent, precisely engineered results. The right choice depends on your anatomy, goals, budget, and tolerance for surgery.

Dr. Paul Mittermiller, a Los Angeles plastic and craniofacial surgeon specializing in facial masculinization surgery, has reviewed this guide on how each approach works, what the evidence says about safety and outcomes, and how to determine which option aligns with your goals.

Find out whether fillers or implants are the right approach for strengthening your brow bone.

Dr. Mittermiller is a plastic surgeon with specialty training in craniofacial surgery and gender-affirming facial surgery. He is primarily located in Los Angeles, California.

What Is the Supraorbital Ridge and Why Does It Matter?

The supraorbital ridge, commonly called the brow bone or brow ridge, is a thickened band of the frontal bone that arches over each eye socket. Directly behind this ridge sit the frontal sinuses, air-filled cavities whose size and shape vary significantly between individuals. The ridge also contains the supraorbital foramina, small openings through which the supraorbital nerve and artery exit to supply sensation and blood flow to the forehead and scalp.

This anatomical region plays a major role in how a face is perceived in terms of gender. Research using 3D geometric morphometry on 154 subjects found that male foreheads exhibit approximately 1.60 mm more anterior projection at the glabella (the smooth area between the eyebrows) compared to female foreheads, along with a wider glabellar region and a more acute nasofrontal angle. Male brow bones are characteristically thicker, more rounded, and more projecting, creating a horizontal shelf of bone above the eyes that produces a shadowing effect over the orbital area.¹

Dr. Douglas Ousterhout, the pioneer of facial feminization surgery, characterized the male forehead as having significant forward projection with brow ridging and a small flat recess above the nose bridge, while the female forehead is typically convex and smooth. His classification system, still used as the standard reference in gender-affirming facial surgery, underscores how central the brow bone is to the overall read of a face.²

If you are exploring masculinization options and want to understand how the full spectrum of procedures works, Dr. Mittermiller’s overview of facial masculinization surgery covers the complete range of available techniques.

How Does a Stronger Brow Bone Change Your Face?

Augmenting the supraorbital ridge does more than add projection above the eyes. It shifts the proportional relationships across the entire upper face. A more prominent brow bone increases the perceived depth of the eye sockets, creates a stronger shadow line beneath the brow, and sharpens the transition between the forehead and the orbital area.

For individuals whose brow bone is naturally flat or minimally projected, even a modest augmentation can produce a meaningful shift in facial appearance. The effect is particularly noticeable in profile view, where the transition from forehead to brow becomes more angular and defined, moving away from the smooth, convex contour typically associated with feminine foreheads.³

Using Fillers for Brow Augmentation

Dermal fillers offer a non-surgical approach to supraorbital ridge enhancement. The procedure involves injecting a gel-based filler material along and above the brow bone to add volume and projection. It is performed in a clinical setting, typically takes under an hour, and requires no general anesthesia.

What Types of Fillers Are Used?

The two most commonly used fillers for brow augmentation are hyaluronic acid (HA) and calcium hydroxylapatite (CaHA).

Hyaluronic acid fillers, including products in the Restylane families, are the most widely used injectable fillers worldwide. They provide immediate volume, are reversible with an enzyme called hyaluronidase, and typically last 6 to 18 months depending on the specific product and injection site. For the brow area, higher-viscosity HA fillers are often preferred because they provide structural support in areas where the filler sits against bone.

Calcium hydroxylapatite, marketed as Radiesse, is a biostimulatory filler that both adds immediate volume and stimulates collagen production over time. Radiesse generally lasts 12 to 18 months or longer. It is worth noting that hydroxyapatite can also be placed surgically as a granular material for more significant brow augmentation. A retrospective analysis published in Aesthetic Plastic Surgery followed 237 patients who received surgically placed hydroxyapatite granules for brow augmentation over a mean follow-up of 41 months. Resorption of the hydroxyapatite volume over time was not noted.⁴

A review in Aesthetic Surgery Journal specifically examining nonsurgical masculinization techniques confirmed that supraorbital ridge augmentation with injectable fillers is a viable approach, noting that dermal fillers can achieve masculinizing results for the brow region with minimal recovery time.⁵

What Are the Risks of Brow Fillers?

The forehead and brow region sits in a vascular zone that requires careful technique. The supraorbital and supratrochlear arteries run through this area, and inadvertent intravascular injection carries serious risks. A systematic review published in Aesthetic Plastic Surgery found that vascular occlusion from filler injections occurs at a rate of approximately 1 per 5,000 syringes, with the glabella identified as one of the highest-risk zones for skin necrosis and vascular complications. In rare cases, fillers can travel retrograde into the orbital vasculature and cause vision impairment.⁶

These risks are significantly reduced when injections are performed by an experienced provider who understands the vascular anatomy, uses cannulas rather than needles in high-risk zones, and injects slowly with small volumes.⁷

Other potential side effects include bruising, swelling, asymmetry, and rare instances of filler migration, though these are generally manageable and temporary.

How Much Do Brow Fillers Cost?

The cost of filler-based brow augmentation varies by product, provider, and geographic market. A typical treatment requires one to two syringes, with hyaluronic acid fillers averaging $600 to $1000 per syringe and Radiesse averaging $800 to $1000 per syringe. Total treatment costs for a single session generally fall between $850 and $2,750 depending on clinic location. Because fillers are temporary, ongoing maintenance sessions every 9 to 18 months add to the long-term cost.

Using Implants for Brow Augmentation

For patients who want a permanent, structurally significant change to their brow bone, surgical implants offer a more definitive solution. Implant-based brow augmentation involves placing a biocompatible material over or along the existing supraorbital ridge to increase its projection and create a more masculine contour.

What Types of Implants Are Available?

Several implant materials are used in forehead and brow augmentation, each with distinct properties.

Custom silicone implants are designed from CT scan data to precisely fit the patient’s anatomy. Silicone is lightweight, reversible (it can be removed if needed), and has a long track record in facial surgery. Its primary limitations are a potential for movement if not properly secured and a risk of bone resorption beneath the implant over time.⁸

PEEK (polyetheretherketone) is an advanced biocompatible polymer that is chemically inert, MRI-safe, and produces minimal inflammatory response. A study published in Plastic and Reconstructive Surgery used statistical shape modeling to design PEEK implants for facial masculinization, creating an objective male skull reference from 40 male CT scans. This approach enables implant designs that reflect population-level masculine anatomy rather than relying on subjective estimation alone.⁹ PEEK implants can be extremely expensive due to the manufacturing process.

Porous polyethylene (Medpor) allows tissue ingrowth, which stabilizes the implant over time but makes removal significantly more difficult. Porous polyethylene has been noted to have a low infection rate when compared to other facial implant materials, with published case series reporting rates as low as 1% in orbital reconstruction across 314 cases.¹⁰

PMMA (polymethylmethacrylate) bone cement is an older, less expensive option that can be molded intraoperatively. A small retrospective study reported long-term success in most cases, though the sample size was limited and outcomes may not generalize to modern practice. However, PMMA can cause bone erosion beneath the material and has been associated with delayed material reactions in some cases.¹¹

How Are Custom Implants Designed?

Modern brow implants are typically custom-designed using virtual surgical planning (VSP). The process begins with a CT scan of the patient’s skull, which is converted into a 3D digital model. The surgeon then works with a biomedical engineer in an interactive planning session to simulate the augmentation, adjust projection and contour, and finalize the implant design before it is manufactured.

Dr. Mittermiller has written about VSP for gender-affirming facial surgery and its role in producing more precise, predictable outcomes. Custom implants eliminate the trial-and-error approach of intraoperative shaping and allow the patient to participate in the design process.

What Is Recovery Like After Implant Surgery?

Brow implant surgery is performed under general anesthesia through an incision along the hairline or within the scalp. A subperiosteal pocket is created along the brow bone, and the implant is positioned and secured, typically with titanium screws. Most patients experience swelling and bruising around the forehead for the first one to two weeks. Return to work is generally possible within two weeks, though strenuous activity should be avoided for four to six weeks. Final results become fully visible at approximately three months once residual swelling resolves.

What Are the Risks of Brow Implants?

Surgical complications vary by implant material, with infection rates generally falling between 1% and 3% depending on the material and surgical site. One small study reported successful outcomes in most patients, though larger studies are needed to better establish complication rates. Implant displacement and temporary nerve-related symptoms have been reported, though their frequency varies across studies and surgical techniques.¹²^,¹³

Additional risks include bleeding, hematoma, infection, poor healing of incisions, and skin contour irregularity around implants. These risks are significantly reduced when the procedure is performed by a surgeon with specific training in craniofacial anatomy and gender-affirming facial surgery.

Fillers vs. Implants: How Do They Compare?

The choice between fillers and implants for brow augmentation comes down to several key factors.

Fillers are non-surgical, require no general anesthesia, and produce immediate results with minimal downtime. They are ideal for patients who want to preview the effect of a stronger brow bone before committing to surgery, or for those who prefer a less invasive approach. The trade-off is that results are temporary, ongoing maintenance is required, and the degree of augmentation achievable with fillers is more limited than what surgery can deliver.

Implants provide permanent, structurally significant augmentation that precisely matches the patient’s anatomy. Custom-designed implants, particularly those made from PEEK or porous polyethylene, offer long-term stability with low complication rates. The trade-off is that implant placement requires surgery, general anesthesia, and a recovery period of several weeks.

For patients considering whether cisgender men can pursue facial masculinization, the answer is yes. Both fillers and implants are available to anyone seeking a more masculine brow contour, regardless of gender identity.

Who Is a Good Candidate for Brow Augmentation?

Good candidates for brow augmentation are individuals who feel that their brow bone lacks the projection or definition they desire. This includes transgender men seeking a more masculine facial structure, cisgender men who want enhanced angular features, and non-binary individuals pursuing specific aesthetic goals. Candidates should be in good overall health, have realistic expectations about outcomes, and understand the differences between temporary and permanent approaches.

Patients with very thin frontal bone or unusually large frontal sinuses may require additional evaluation to determine the safest augmentation approach, as these anatomical factors influence both the technique used and the degree of projection achievable.

What to Expect During a Consultation

During a consultation with Dr. Mittermiller, your facial anatomy will be carefully evaluated, including the current projection of your brow bone, forehead contour, frontal sinus anatomy, and overall facial proportions. If implant surgery is being considered, CT imaging may be used to create a 3D model of your skull for virtual surgical planning.

The consultation is also an opportunity to discuss whether fillers, implants, or a staged approach (starting with fillers and transitioning to implants later) best aligns with your goals and timeline. Dr. Mittermiller works closely with each patient to develop a treatment plan that reflects their individual anatomy and desired outcome.

Frequently Asked Questions About Brow Augmentation

Can fillers create the same result as a brow implant?

Fillers can add subtle to moderate projection to the brow bone, but they cannot replicate the degree of structural augmentation that a custom implant provides. For patients seeking a significant increase in brow ridge prominence, implants are generally the more effective option. Fillers work well for mild enhancement or for patients who want to trial the appearance of a stronger brow before pursuing surgery.

How long do brow augmentation results last?

Hyaluronic acid fillers typically last 6 to 18 months, while calcium hydroxylapatite (Radiesse) can last 12 to 18 months or longer. Surgical implants are permanent, though silicone implants can be removed or replaced if the patient’s goals change over time.

Is brow augmentation covered by insurance?

Cosmetic brow augmentation is generally not covered by health insurance. However, when brow augmentation is performed as part of gender-affirming facial masculinization surgery, some insurance plans may provide coverage. Patients should verify their specific plan’s policies regarding gender-affirming procedures.

Can brow augmentation be combined with other facial masculinization procedures?

Yes. Brow augmentation is frequently performed alongside other masculinizing procedures such as jaw augmentation, chin augmentation (genioplasty), and rhinoplasty. Combining procedures reduces the total number of anesthesia sessions and recovery periods. Dr. Mittermiller offers comprehensive surgical plans that address multiple areas of the face in a single operation when appropriate.

What is the difference between brow augmentation and brow bone reduction?

Brow augmentation adds volume and projection to the supraorbital ridge to create a more masculine appearance. Brow bone reduction, also called forehead feminization, removes or reshapes the brow bone to create a smoother, softer forehead contour. These are opposite procedures that serve different aesthetic goals, though both address the same anatomical area.

How do I know if I need fillers or implants for my brow?

The best approach depends on your starting anatomy, desired degree of change, budget, and willingness to undergo surgery. Patients who want a subtle enhancement, prefer a non-surgical option, or want to preview the effect of augmentation before committing to a permanent change often start with fillers. Patients who want significant, lasting projection and are comfortable with a surgical procedure typically benefit most from custom implants. A consultation with a surgeon experienced in both approaches is the most reliable way to determine the right option.

Schedule Your Brow Augmentation Consultation in Los Angeles

If you are considering brow augmentation as part of your facial masculinization goals, the next step is a personalized consultation. Dr. Mittermiller will evaluate your facial anatomy, discuss the full range of options available to you, and help you develop a plan that aligns with your goals.