Problem · Forehead lines (horizontal lines)
Forehead lines, honestly.
Folded by the only muscle that lifts your brows — a muscle that, in many foreheads, is also holding heavy lids out of your eyes. Below, the eyelid test that tells you which forehead you have, every treatment from toxin to the brow lift graded by the trials behind it, and the dropped brow in numbers.
The whole guide in two minutes
What's actually happening
Muscle
The only muscle that lifts your brows
The frontalis raises the brows for surprise, emphasis and every glance upward, and folds the forehead skin each time; its two halves pull toward a line about 60% of the way up, which is where the deepest crease forms.
The eyelids
A forehead working to hold heavy lids up
When the upper lid droops or hoods, the frontalis lifts the brow all day to keep the view clear; people with forehead lines are more likely to have eyelid ptosis, and one-sided lines almost always sit over the droopier eye.
Skin & sun
The most sun-exposed skin on the face, printing the fold
The forehead takes more sun than any other part of the face; as the dermis thins and loses recoil, the fold the muscle makes stops springing back, and the line is there when the face is at rest.
What a forehead line actually is
What a forehead line actually is
The frontalis is a thin sheet of muscle running from the scalp to the brows, the only muscle that raises them, and it has no attachment to bone: it pulls the brow up against the frown muscles — corrugator, procerus, orbicularis — that pull it down (frontalis anatomy; functional anatomy). Because it is anchored above and below by skin rather than bone, contraction moves the forehead in two directions at once: in 27 volunteers of both sexes, the lower forehead skin moved up and the upper forehead skin moved down, converging on a horizontal "C-line" at about 61% of forehead height that coincided with the second line from the top (PRS, 2020). That is where the deepest crease lives, and it is also the line above which toxin can be placed without dropping the brow.
Every raise of the brows folds the skin at these lines. In youth the fold springs back; as the dermis thins and loses elastic recoil, the fold prints and the line is there at rest. What makes forehead lines different from every other line on the face is the muscle's other job — see the next two drawers.
Who gets them, and why men get them deeper
Who gets them, and why men get them deeper
Forehead lines appear early, usually as dynamic creases on raising the brows in the twenties, and deepen into resting lines through the forties; the validated photonumeric scale runs from 0 (none) through fine lines only on expression (1) to deep wrinkles at rest with deep furrows on expression (4), and was built and tested on 295 live subjects (scale validation). Men get them deeper, with thicker skin and heavier brows that ask more of the frontalis: in a retrospective series of 160 patients over 50, those with fixed forehead lines were older (61.6 vs 58.6 years), three times as often male (36% vs 12%), and more likely to have eyelid ptosis (90% vs 77%) and excess lid skin (20% vs 5%) (Aesthetic Plastic Surgery, 2018). Sun, smoking and a habit of talking with the eyebrows set the pace.
Why the forehead is a trade, not a fix
Why the forehead is a trade, not a fix
Every other line on the face can be treated by quietening the muscle that makes it. The forehead cannot, quite, because the frontalis is also the muscle that keeps the brows and lids out of the eyes; the 160-patient series found ptosis in 90% of people with forehead lines, and its authors warn that chemodenervation "may have significant adverse effects on the visual field by forcibly blocking frontalis compensation" (2018 series). So toxin on the forehead is a dose-finding exercise in the individual: enough to soften the lines, not enough to drop the brow, always with the frown muscles treated so the lifters have less to fight (2025 review).
Two more constraints. Lines that have printed into the skin outlast the muscle and need skin work or a soft filler — and the forehead, glabella and nose are the three sites where filler has caused blindness, because their arteries connect to the eye (visual-loss consensus). And for the forehead that is compensating for heavy lids, the honest treatment is not on the forehead at all: after upper blepharoplasty the frontalis measurably relaxes, and after a brow lift it no longer needs to work. This page grades all of it, with the trade stated each time.
Which forehead lines do you have?
Dynamic lines (only when you raise your brows)
Dynamic lines (only when you raise your brows)
Raise your brows in a mirror and relax. Lines that vanish completely are dynamic: the skin still springs back, and the frontalis is the whole cause. This is the stage where a light dose of toxin, given with the frown lines, softens the lines for three to four months without touching the brow, and where sunscreen and a retinoid keep the fold from printing. Before anyone injects, do the eyelid test in the drawer below — a dynamic-looking forehead can still be a working one.
Etched lines (there at rest)
Etched lines (there at rest)
Relax the forehead completely — hand flat on the brow if it helps — and look. Lines still there are etched: the collagen beneath the fold has been creased past recovery, and no dose of toxin removes them on day one. Toxin still matters — it stops the folding, and etched forehead lines shallow over successive cycles as the skin stops being creased — but the residue after three months of a quiet muscle is skin, and belongs to a soft, superficial hyaluronic gel (the one filler licensed for forehead lines in Europe), a retinoid and, for the deepest, fractional resurfacing. Deep furrows in a thick male forehead sometimes want structural support on the bone as well.
The working forehead (heavy lids, low brows)
The working forehead (heavy lids, low brows)
Close your eyes, let the forehead go slack, then open the eyes slowly without letting the brows rise. If the upper lids hood, the lashes disappear under a fold of skin, or the top of the view narrows, the frontalis is compensating: it has been holding the brows up to keep the eyes open, and the forehead lines are the receipt. This is common after fifty, commoner in men, and it is what the 160-patient series measured — ptosis in 90% of those with forehead lines, and one-sided lines over the droopier eye in every case (2018 series). Toxin that stops this frontalis gives a smooth forehead, a low brow and a tired, hooded eye for three months. The treatments for this forehead are upper blepharoplasty, ptosis repair or a brow lift — after which the muscle relaxes on its own — with toxin, if at all, in small doses high on the forehead and always with the frown muscles.
Lines on one side only
Lines on one side only
A forehead lined on one side and smooth on the other is a diagnostic gift. In the 160-patient series, all 28 patients with unilateral fixed forehead lines had eyelid ptosis on the same side — the frontalis on that side is lifting harder to keep that eye open (abstract). Look at the lids in a photograph taken straight on: the eye under the lines will show less of its upper lid and a lower brow. Treating that side's frontalis with toxin evens the forehead and drops the already-lower brow further; the fix is the lid, and a one-sided ptosis is something an oculoplastic surgeon should see.
The frown–forehead tug of war
The frown–forehead tug of war
The frontalis lifts against the corrugators and procerus, so a strong frown complex makes the frontalis work harder to hold the brows where the face wants them. Quieten the frown muscles and the lifter can relax: in a prospective pilot, 18 patients (mean age 39) with moderate to very severe frown lines were treated with toxin in the glabella only, and their forehead-wrinkle scale fell from 3.0 to 1.0 over three treatment cycles, with frontal skin displacement on 3D imaging falling from 37 mm to 18 mm — no frontalis injections at all (pilot study). That is why the licensed forehead treatment is always given with the glabella, why co-treatment reduces the risk of brow droop, and why, for the working forehead that cannot afford a weak frontalis, treating the frown lines alone is a legitimate plan.
The raise test, the eyelid test and the photograph
The raise test, the eyelid test and the photograph
Three tests before any needle. Raise the brows and relax: lines that vanish are dynamic, lines that stay are etched. Close the eyes, let the forehead go, open slowly without raising the brows: if the lids hood or the view narrows, the frontalis is working and toxin will cost you brow height. Compare the sides: lines on one side mean a droopier lid on that side. Then a photograph straight on, at rest and raised, in one light, with the brows' resting height visible — every treatment on this page is judged against it, and a brow that drops after toxin is only provable with a before. Two questions for the clinician: whether you squint or raise your brows to see (an out-of-date glasses prescription makes a forehead work), and whether your brows sit low already, which is the single best predictor of a heavy result.
The full breakdown
Forehead lines — what the evidence says
Part 01
At home: the skin and the habits
Moderate evidence Sunscreen, a hat and a fringe
The forehead is the most sun-exposed skin on the face, and daily sunscreen cut measured skin aging by 24% in the one randomised prevention trial. The skin half of the problem, and the cheapest.
Sunscreen, a hat and a fringe
The forehead is the most sun-exposed skin on the face, and daily sunscreen cut measured skin aging by 24% in the one randomised prevention trial. The skin half of the problem, and the cheapest.
The forehead is the most sun-exposed skin on the face, and daily sunscreen cut measured skin aging by 24% in the one randomised prevention trial. The skin half of the problem, and the cheapest.
The forehead faces the sky, and it is where sun does its most measurable work on the face. Daily sunscreen users in the Nambour trial showed no detectable increase in skin aging over 4.5 years — 24% less than discretionary users (Hughes 2013) — and the forehead is the zone most people apply it to first and reapply to never. A hat does the rest; a fringe does it for free and hides the lines while it does. Graded moderate rather than strong because no trial has measured forehead lines and the muscle is untouched: this keeps the fold from printing, and nothing else.
- Best for
- everyone — the only prevention with a trial, on the skin that takes the most sun
- Sessions
- Every morning
- Downtime
- None
- Cost
- €10–30 / month
Moderate evidence A retinoid across the forehead
Eight randomised tretinoin trials show fewer fine and coarse wrinkles over vehicle; the forehead tolerates it well and it softens the etched component. It does not touch the muscle.
A retinoid across the forehead
Eight randomised tretinoin trials show fewer fine and coarse wrinkles over vehicle; the forehead tolerates it well and it softens the etched component. It does not touch the muscle.
Eight randomised tretinoin trials show fewer fine and coarse wrinkles over vehicle; the forehead tolerates it well and it softens the etched component. It does not touch the muscle.
Tretinoin thickens the epidermis and rebuilds upper-dermal collagen; the meta-analysis of eight randomised trials in 1,361 patients found significant improvement in both fine and coarse wrinkles over vehicle (meta-analysis). The forehead's thick skin tolerates it better than the eyes or mouth, and it is the base under toxin for anyone with lines at rest: the muscle stops folding, the retinoid rebuilds the crease. Moderate here rather than strong because a forehead line is a fold first and a wrinkle second. The wrinkles guide covers the retinoid ladder.
- Sessions
- Nightly, indefinitely
- Downtime
- Weeks of dryness
- Cost
- €10–30 / month
Emerging evidence "Topical Botox" peptides (acetyl hexapeptide-3 / Argireline)
A 60-person placebo-controlled trial found a 49% anti-wrinkle response against 0% on placebo around the eyes after four weeks, and a blinded crow’s-feet trial agrees; the effect is a fraction of toxin’s and nobody has tested the forehead.
"Topical Botox" peptides (acetyl hexapeptide-3 / Argireline)
A 60-person placebo-controlled trial found a 49% anti-wrinkle response against 0% on placebo around the eyes after four weeks, and a blinded crow’s-feet trial agrees; the effect is a fraction of toxin’s and nobody has tested the forehead.
A 60-person placebo-controlled trial found a 49% anti-wrinkle response against 0% on placebo around the eyes after four weeks, and a blinded crow’s-feet trial agrees; the effect is a fraction of toxin’s and nobody has tested the forehead.
Acetyl hexapeptide-3 mimics a fragment of the protein toxin cleaves, and the marketing calls it topical Botox. The evidence is small and positive: 60 Chinese subjects randomised to the peptide or placebo on periorbital wrinkles twice daily for four weeks showed a 48.9% anti-wrinkle response against 0% on placebo (randomised study), and a double-blind randomised trial of the peptide cream against a palmitoyl pentapeptide cream on crow's feet found measurable improvement (JCAD trial). Skin-deep, a fraction of an injection's effect, and untested on the frontalis — but harmless, and the one cream with a mechanism aimed at the muscle rather than the skin.
- Sessions
- Twice daily
- Downtime
- None
- Cost
- €20–80 / month
Emerging evidence An eye test, the right glasses and sunglasses
A forehead that lifts to see — an old prescription, screen squinting, glare — works all day; no trial exists, but the lid-ptosis series makes the mechanism plain. Free, and the first thing to fix in a working forehead.
An eye test, the right glasses and sunglasses
A forehead that lifts to see — an old prescription, screen squinting, glare — works all day; no trial exists, but the lid-ptosis series makes the mechanism plain. Free, and the first thing to fix in a working forehead.
A forehead that lifts to see — an old prescription, screen squinting, glare — works all day; no trial exists, but the lid-ptosis series makes the mechanism plain. Free, and the first thing to fix in a working forehead.
The frontalis is recruited whenever the eyes need more room — a lid that droops, a brow that has fallen, a screen that is too dim, a prescription two years out of date, glare that makes you lift the brows instead of narrowing the eyes. The 160-patient series established the lid half of that mechanism (2018 series); nobody has trialled the glasses half, which is why the row sits at emerging. An eye test, current lenses, sunglasses outdoors and a brighter screen cost almost nothing and remove hours of daily brow-lifting from a forehead that is compensating. Not a treatment for a line that exists; a habit that stops the next one.
- Sessions
- Once, then every two years
- Downtime
- None
- Cost
- Free–€50
Limited evidence Silicone forehead patches, wrinkle tape and overnight "smoothing" pads
Splinting the forehead overnight stops it folding for eight hours and hydrates the crease so it looks softer for an hour on removal; the century-old products have no controlled trial. Cheap, harmless, temporary.
Silicone forehead patches, wrinkle tape and overnight "smoothing" pads
Splinting the forehead overnight stops it folding for eight hours and hydrates the crease so it looks softer for an hour on removal; the century-old products have no controlled trial. Cheap, harmless, temporary.
Splinting the forehead overnight stops it folding for eight hours and hydrates the crease so it looks softer for an hour on removal; the century-old products have no controlled trial. Cheap, harmless, temporary.
Adhesive forehead patches are the oldest wrinkle product still sold, and the mechanism is honest: the forehead cannot fold while it is taped flat, and silicone holds water against the crease so it plumps for an hour or two after removal. No controlled trial exists for any of them on forehead lines, the effect ends when the tape comes off, and the muscle resumes at breakfast. A harmless experiment before an event; not a plan.
- Sessions
- Nightly
- Downtime
- None
- Cost
- €15–40
Limited evidence Facial exercise and "forehead yoga"
Raising the brows is the movement that makes the line; the one facial-exercise pilot measured cheek fullness, not the forehead. Counterproductive here.
Facial exercise and "forehead yoga"
Raising the brows is the movement that makes the line; the one facial-exercise pilot measured cheek fullness, not the forehead. Counterproductive here.
Raising the brows is the movement that makes the line; the one facial-exercise pilot measured cheek fullness, not the forehead. Counterproductive here.
Facial-exercise programmes include brow raises and "forehead smoothing" movements that contract the frontalis — the muscle whose contraction is the wrinkle. The 20-week pilot in 16 women found fuller cheeks with no control group and no forehead measurement (Alam 2018); the best-evidenced treatment on this page works by doing the opposite. If anything, the useful habit is the reverse: noticing when the brows are up and letting them down.
- Sessions
- Do not, for the forehead
- Downtime
- None
- Cost
- Free
Part 02
Injectables
The convergence line, the five points and the centimetre above the brow
16:9 · to be supplied
Strong evidence Botulinum toxin in the frontalis, with the frown lines
Two phase 3 trials: 61% at least two grades better at a month vs 0% on placebo (391 patients) and 46–53% vs 0.6% (787 patients); licensed since 2017 at 20 units across five points, always with 20 units in the glabella. Label rates: headache 9% vs 5%, eyelid droop 2% vs 0%, brow droop 2%.
Botulinum toxin in the frontalis, with the frown lines
Two phase 3 trials: 61% at least two grades better at a month vs 0% on placebo (391 patients) and 46–53% vs 0.6% (787 patients); licensed since 2017 at 20 units across five points, always with 20 units in the glabella. Label rates: headache 9% vs 5%, eyelid droop 2% vs 0%, brow droop 2%.
Two phase 3 trials: 61% at least two grades better at a month vs 0% on placebo (391 patients) and 46–53% vs 0.6% (787 patients); licensed since 2017 at 20 units across five points, always with 20 units in the glabella. Label rates: headache 9% vs 5%, eyelid droop 2% vs 0%, brow droop 2%.
Weakening the frontalis stops the folding, and the evidence is regulator-grade. In the pivotal 12-month phase 3 trial, 391 patients with moderate-to-severe forehead and glabellar lines were randomised to onabotulinumtoxinA 40 U — 20 U across the frontalis and 20 U in the glabella — or placebo: at day 30, 61.4% had improved at least two grades on both investigator and self-assessment against 0% on placebo, and 94.8% versus 1.7% were rated none or mild (phase 3 trial); the companion trial of 787 patients treated with or without crow's feet found 45.6% and 53.0% two grades better against 0.6% (upper-face trial), with satisfaction measured separately (patient-reported outcomes). The prescribing information records the trade: in 665 treated patients against 315 on placebo, headache 9% vs 5%, eyelid ptosis 2% vs 0%, brow ptosis 2% (prescribing information). A GRADE-assessed meta-analysis of three phase 3 trials of incobotulinumtoxinA in 704 patients gives a relative risk of 19 for a one-grade forehead improvement at day 30, with no significant excess of brow ptosis (meta-analysis); the longer-acting daxibotulinumtoxinA has phase 2 forehead data (phase 2a).
Technique is the whole art: small doses spread across the upper two-thirds of the forehead above the convergence line, nothing within a centimetre of the brow, less on the sides (the "Spock" peak comes from an untreated lateral frontalis), and always with the glabella so the lifters have less to fight (2025 review). Effect at a week, peak at two, three to four months. The first treatment is a trial of your own forehead: photograph the brow height before, and expect the second visit to adjust the dose.
- Best for
- dynamic lines in a forehead that passes the eyelid test — the treatment, given lightly and high
- Sessions
- Every 3–4 months
- Downtime
- None
- Cost
- €150–350 (UK £150–350 for one or two areas)
Moderate evidence A soft, superficial hyaluronic-acid filler in etched lines
The one filler licensed for forehead lines in Europe improved 83% of foreheads at 12 weeks in its post-market study, maintained to 24 weeks; an 18-month series of a superficial gel in 84 foreheads held two-thirds of its gain. The forehead is the highest-risk site for filler blindness.
A soft, superficial hyaluronic-acid filler in etched lines
The one filler licensed for forehead lines in Europe improved 83% of foreheads at 12 weeks in its post-market study, maintained to 24 weeks; an 18-month series of a superficial gel in 84 foreheads held two-thirds of its gain. The forehead is the highest-risk site for filler blindness.
The one filler licensed for forehead lines in Europe improved 83% of foreheads at 12 weeks in its post-market study, maintained to 24 weeks; an 18-month series of a superficial gel in 84 foreheads held two-thirds of its gain. The forehead is the highest-risk site for filler blindness.
Once toxin has stopped the folding, the crease that remains is a groove in thinned skin, and a low-viscosity gel threaded just beneath it lifts the floor. The evidence is post-market rather than pivotal: the cohesive gel granted a European indication for horizontal forehead lines improved 82.7% of participants at 12 weeks with results maintained to 24 (EU approval); an 18-month prospective study of a superficial gel across 196 people treated 84 foreheads with about 1.1 ml, taking the forehead score down 1.5 grades at three weeks and holding a 0.8-grade improvement at 18 months, with 62–66% still counted as successes at the end (18-month study). Moderate rather than strong because none of it is randomised.
The caveat outweighs the evidence. The supratrochlear and supraorbital arteries run up the forehead from the eye, and the forehead, glabella and nose are the three sites where hyaluronic filler has caused blindness (visual-loss consensus). Cannula, tiny aliquots, superficial placement, an injector who treats foreheads weekly and keeps hyaluronidase in the room, and a good reason. The filler guide covers the protocol.
- Best for
- lines that stay after three months of a quiet muscle — by cannula, in tiny amounts, from an expert
- Sessions
- Every 6–12 months
- Downtime
- 1–3 days; bruising
- Cost
- €300–600
Emerging evidence Frown lines only, for the working forehead
For the forehead that cannot afford a weak frontalis, treating the glabella alone: forehead lines fell from grade 3 to grade 1 over three cycles in an 18-person pilot, with brow position preserved. Small, prospective, and the safest first move for heavy lids.
Frown lines only, for the working forehead
For the forehead that cannot afford a weak frontalis, treating the glabella alone: forehead lines fell from grade 3 to grade 1 over three cycles in an 18-person pilot, with brow position preserved. Small, prospective, and the safest first move for heavy lids.
For the forehead that cannot afford a weak frontalis, treating the glabella alone: forehead lines fell from grade 3 to grade 1 over three cycles in an 18-person pilot, with brow position preserved. Small, prospective, and the safest first move for heavy lids.
Because the frontalis works against the frown complex, quietening the frown muscles lets it rest without being weakened. The pilot is small and specific: 18 patients (mean age 39) with moderate to very severe glabellar lines received toxin in the glabella only across three cycles; forehead-wrinkle scores fell from 3.0 to 1.0, frontal skin displacement on 3D imaging fell from 37.2 mm to 17.9 mm, and brow position was scored throughout, without a single frontalis injection (pilot study). Emerging because it is 18 people without a control arm — but for the forehead that fails the eyelid test it is the plan with no downside, and if the lines soften enough the frontalis never needs touching. If they do not, a few units high on the forehead can be added at the next cycle.
- Best for
- low brows, hooded lids, or a forehead that dropped after a previous treatment
- Sessions
- Every 3–4 months
- Downtime
- None
- Cost
- €150–250
Emerging evidence Intradermal micro-dosing ("microbotox", "baby botox")
Microdroplets of 0.1–0.2 units into the skin of the lower forehead to block only the surface fibres of the frontalis; reports describe softer lines with brow height unchanged, at the cost of a shorter effect. Described in reviews, not yet trialled against standard dosing.
Intradermal micro-dosing ("microbotox", "baby botox")
Microdroplets of 0.1–0.2 units into the skin of the lower forehead to block only the surface fibres of the frontalis; reports describe softer lines with brow height unchanged, at the cost of a shorter effect. Described in reviews, not yet trialled against standard dosing.
Microdroplets of 0.1–0.2 units into the skin of the lower forehead to block only the surface fibres of the frontalis; reports describe softer lines with brow height unchanged, at the cost of a shorter effect. Described in reviews, not yet trialled against standard dosing.
Instead of five intramuscular points, the toxin is diluted and placed as dozens of intradermal microdroplets of 0.1–0.2 U across the lower forehead, aiming to weaken only the superficial fibres that fold the skin while the deeper muscle keeps lifting the brow. The reviews describe reduced forehead-wrinkle severity with brow heights unchanged, and are candid that the effect is shorter and partial (2025 review; microtoxin roundtable). No randomised comparison against standard dosing exists, which keeps it emerging. A reasonable choice for the low-browed forehead that wants something, and for the lower forehead where standard points cannot go.
- Sessions
- Every 2–3 months
- Downtime
- None
- Cost
- €150–300
Emerging evidence Deep forehead contouring on the bone (biostimulator or firm gel)
For the flat, bony forehead whose furrows persist after toxin: a 132-patient double-blind randomised trial of supraperiosteal filling with calcium hydroxylapatite, with or without hyaluronic acid, improved contour in most with 3.7% nodules and no vascular events. Structure, not lines.
Deep forehead contouring on the bone (biostimulator or firm gel)
For the flat, bony forehead whose furrows persist after toxin: a 132-patient double-blind randomised trial of supraperiosteal filling with calcium hydroxylapatite, with or without hyaluronic acid, improved contour in most with 3.7% nodules and no vascular events. Structure, not lines.
For the flat, bony forehead whose furrows persist after toxin: a 132-patient double-blind randomised trial of supraperiosteal filling with calcium hydroxylapatite, with or without hyaluronic acid, improved contour in most with 3.7% nodules and no vascular events. Structure, not lines.
Some foreheads — often men's, often after years of toxin — keep their furrows because the forehead has flattened and the skin folds over bone with nothing between. Filling on the periosteum restores a convex forehead that folds less. The trial is real but narrow: 132 patients with forehead irregularities unresolved by toxin were randomised double-blind to diluted calcium hydroxylapatite or the same mixed with hyaluronic acid, placed supraperiosteally; the mixture gave better global improvement at 180 days (63 vs 55 improved), nodules occurred in 3.7% (four times fewer with the mixture), and no vascular complications were reported (double-blind RCT). Emerging because it compares two actives without an untreated arm and treats contour rather than lines, and because deep forehead injection carries the same arterial risk as any forehead filler. The regenerative guide grades the biostimulators.
- Sessions
- Every 12–24 months
- Downtime
- 3–7 days
- Cost
- €600–1,200
Part 03
The eyelids, the brow and the skin
Moderate evidence Upper blepharoplasty or ptosis repair (when the lids are the cause)
Fix the lid and the frontalis relaxes: in a 54-patient randomised trial, frontalis electrical activity halved at a year (80 to 39 mV) and headaches improved; brow descent of 1–4 mm is the visible sign of a muscle that has stopped working. The treatment of the working forehead.
Upper blepharoplasty or ptosis repair (when the lids are the cause)
Fix the lid and the frontalis relaxes: in a 54-patient randomised trial, frontalis electrical activity halved at a year (80 to 39 mV) and headaches improved; brow descent of 1–4 mm is the visible sign of a muscle that has stopped working. The treatment of the working forehead.
Fix the lid and the frontalis relaxes: in a 54-patient randomised trial, frontalis electrical activity halved at a year (80 to 39 mV) and headaches improved; brow descent of 1–4 mm is the visible sign of a muscle that has stopped working. The treatment of the working forehead.
When the frontalis is lifting to hold hooded lids or a drooping eyelid out of the way, the treatment of the forehead is the eyelid. The evidence is the muscle relaxing after surgery: in a randomised trial of 54 patients comparing two blepharoplasty techniques, frontalis electromyographic activity fell significantly by 12 months (80 to 39 mV in the skin-only arm), both groups' brows descended 1.4–4.3 mm, and headache scores improved (randomised trial); a 13-patient EMG study found the same gradual fall in frontalis tone over six months (frontalis tonicity); after ptosis repair, eyebrow descent of at least 5% occurred in 61% of 93 patients — the brow returning to where it belongs once the muscle stops compensating (case-control study; 2012 study). Moderate because forehead lines were never the measured endpoint: what is measured is the muscle switching off.
The same descent is the trade: a blepharoplasty in someone with already-low brows can drop them, which is why surgeons add an internal browpexy — brow position rose about 3–4% with it and fell about 6% without in a 48-patient comparison (browpexy study) — or pair the eyelid with a brow lift. The eye guide and the 50s guide cover the surgery.
- Best for
- the forehead that fails the eyelid test — hooded lids, a narrowed view, one-sided lines
- Sessions
- Once; 10–15 years
- Downtime
- 1–2 weeks of bruising; scar fades over months
- Cost
- €2,500–5,000 (UK £2,500–4,500)
4:5 · to be supplied
Moderate evidence Microfocused ultrasound brow lift (Ultherapy and successors)
The first device cleared to lift the brow (2009): a randomised, blinded 42-person study measured 2.2 mm of lift at 90 days and 1.9 mm at 180, clinically significant in 87.5%; a 38-person study found 2.0 mm at a month and 1.6 mm at four. A lifted brow unloads the frontalis for a year.
Microfocused ultrasound brow lift (Ultherapy and successors)
The first device cleared to lift the brow (2009): a randomised, blinded 42-person study measured 2.2 mm of lift at 90 days and 1.9 mm at 180, clinically significant in 87.5%; a 38-person study found 2.0 mm at a month and 1.6 mm at four. A lifted brow unloads the frontalis for a year.
The first device cleared to lift the brow (2009): a randomised, blinded 42-person study measured 2.2 mm of lift at 90 days and 1.9 mm at 180, clinically significant in 87.5%; a 38-person study found 2.0 mm at a month and 1.6 mm at four. A lifted brow unloads the frontalis for a year.
Focused ultrasound heats points in the deep dermis and the fibrous layer over the brow to contract them, and its first regulatory clearance, in 2009, was for lifting the brow (Ultherapy). The measurements are millimetres and consistent: in a randomised, blinded, prospective study of 42 people (mean age 41), brow height rose by 2.16 mm at 90 days and 1.93 mm at 180, with 87.5% judged to have clinically significant elevation by two blinded assessors and only transient redness and swelling (randomised blinded study); a prospective study of 38 patients treated across the forehead and lateral eye found average brow height up 1.99 mm at four weeks and 1.57 mm at sixteen, with glabellar wrinkles improved in 71% (2025 study); the meta-analyses of the class find modest, consistent lifting (meta-analysis). Two millimetres of brow is real, is not a surgical lift, and buys the forehead a year of doing less; it does not remove a line. Painful for a few minutes, and a risk to the temple's nerve branch in careless hands. A manufacturer summary supports a competing device's brow indication (study summary). The jowls guide grades the devices.
- Best for
- a low brow in someone not ready for surgery — the non-surgical answer to the working forehead
- Sessions
- Once a year
- Downtime
- None; days of tenderness
- Cost
- €400–800 for the brow (UK £320–800)
4:5 · to be supplied
Moderate evidence Endoscopic brow lift
Meta-analysis of 12 studies in 478 patients: brow elevation of 3.3 mm medially, 3.9 mm centrally and 4.4 mm laterally sustained at 1–6 years, with the lateral brow relapsing 2–3 mm in some series; forehead furrows improve as the frontalis stands down. Surgery, scars in the hair, numbness for months.
Endoscopic brow lift
Meta-analysis of 12 studies in 478 patients: brow elevation of 3.3 mm medially, 3.9 mm centrally and 4.4 mm laterally sustained at 1–6 years, with the lateral brow relapsing 2–3 mm in some series; forehead furrows improve as the frontalis stands down. Surgery, scars in the hair, numbness for months.
Meta-analysis of 12 studies in 478 patients: brow elevation of 3.3 mm medially, 3.9 mm centrally and 4.4 mm laterally sustained at 1–6 years, with the lateral brow relapsing 2–3 mm in some series; forehead furrows improve as the frontalis stands down. Surgery, scars in the hair, numbness for months.
Through small incisions behind the hairline, the forehead is released from the bone, the frown muscles weakened and the brow repositioned and fixed — the operation for the brow that has fallen and the forehead that has been holding it up. A systematic review and meta-analysis of 12 studies in 478 patients with one to six years of follow-up found pooled elevation of 3.25 mm at the medial brow, 3.86 mm centrally and 4.35 mm laterally, with the lateral brow the least stable — relapse of 2–3 mm within six months in some series, and one long-term analysis finding the brow tail only 0.7 mm above its starting point (meta-analysis). Objective one-year data found frontalis furrows significantly improved with 95% satisfaction (one-year study), and a 2026 AI analysis of 35 patients showed that the "bigger forehead" people notice afterward is the frontalis relaxing with the eyes open, not the hairline moving (PRS, 2026). Numbness and itching of the scalp for months, small areas of hair loss around the incisions, and a lateral brow that drifts back; the 50s guide covers the decade.
- Sessions
- Once; 7–10 years
- Downtime
- 2 weeks; numbness and itching for months
- Cost
- €5,000–8,000 (UK £4,500–7,000)
4:5 · to be supplied
Emerging evidence Fractional CO₂ and erbium resurfacing
Profilometry after three fractional CO₂ sessions found wrinkles significantly reduced in every facial zone, with the cheeks best (−58% size) and no separate forehead figure; the etched forehead line responds, the fold returns unless the muscle is treated. Skin work, after toxin.
Fractional CO₂ and erbium resurfacing
Profilometry after three fractional CO₂ sessions found wrinkles significantly reduced in every facial zone, with the cheeks best (−58% size) and no separate forehead figure; the etched forehead line responds, the fold returns unless the muscle is treated. Skin work, after toxin.
Profilometry after three fractional CO₂ sessions found wrinkles significantly reduced in every facial zone, with the cheeks best (−58% size) and no separate forehead figure; the etched forehead line responds, the fold returns unless the muscle is treated. Skin work, after toxin.
Fractional lasers ablate columns of skin and rebuild the dermis between them, and the forehead — thick, sebaceous, quick to heal — tolerates them well. The measured evidence is by zone rather than by line: a prospective profilometric study after three fractional CO₂ treatments found wrinkle size and depth significantly reduced in all four facial areas, best on the cheeks (−58% and −51%) and less on the periorbital zone (−35% and −31%), without a separate forehead figure (BJD, 2014; satisfaction study). Emerging for this problem on that basis: it rebuilds the crease, the muscle re-folds it, so it belongs after toxin for etched lines and not instead of it. Darker skin darkens; the laser guide covers the devices.
- Sessions
- 1–3
- Downtime
- 5–7 days per session
- Cost
- €400–1,500
4:5 · to be supplied
Emerging evidence Radiofrequency microneedling
Image-derived studies show tighter, better-hydrated forehead skin at 30 days with needles at 1.5 mm or more; no trial has used forehead lines as its endpoint, and the class carries a regulator’s alert on burns. Skin quality, not a fold.
Radiofrequency microneedling
Image-derived studies show tighter, better-hydrated forehead skin at 30 days with needles at 1.5 mm or more; no trial has used forehead lines as its endpoint, and the class carries a regulator’s alert on burns. Skin quality, not a fold.
Image-derived studies show tighter, better-hydrated forehead skin at 30 days with needles at 1.5 mm or more; no trial has used forehead lines as its endpoint, and the class carries a regulator’s alert on burns. Skin quality, not a fold.
Insulated needles deliver radiofrequency heat into the forehead dermis — at least 1.5 mm deep here, over bone — to contract and remodel it. The evidence is skin-metric: image-derived analysis after microneedle radiofrequency found improved wrinkle metrics, tone and hydration at 30 days with a low complication rate, and an independent benefit for forehead vascular parameters (2025 study; review). No study has measured a forehead line, the muscle is untouched, and the FDA's alert on burns and scarring with these devices is recent (FDA alert). For skin texture on a forehead already treated with toxin; the microneedling guide covers the devices.
- Sessions
- 3–4, a month apart
- Downtime
- 2–4 days
- Cost
- €400–800 / session
4:5 · to be supplied
Limited evidence The vertical lines are a different problem
Vertical creases on the forehead and temple are sleep lines from a pillow, not frontalis lines; no muscle makes them and toxin does nothing for them. Back-sleeping, a soft filler or resurfacing.
The vertical lines are a different problem
Vertical creases on the forehead and temple are sleep lines from a pillow, not frontalis lines; no muscle makes them and toxin does nothing for them. Back-sleeping, a soft filler or resurfacing.
Vertical creases on the forehead and temple are sleep lines from a pillow, not frontalis lines; no muscle makes them and toxin does nothing for them. Back-sleeping, a soft filler or resurfacing.
A vertical or diagonal crease on one side of the forehead or temple that does not change when you raise your brows is a sleep wrinkle: the review that named them traces these lines to compression and shear of the face against the pillow in side- and stomach-sleepers, worsening as skin loses elasticity (Anson 2016). No muscle makes them, so toxin does nothing; the answer is sleeping on the back where possible, a contoured pillow, and — for a crease that has printed — the same superficial filler or resurfacing as any etched line. Limited because nobody has randomised a pillow.
- Sessions
- Every night
- Downtime
- None
- Cost
- Free (€30–80 for a contoured pillow)
4:5 · to be supplied
Editor's choice
Our picks
One per problem — where the evidence is actually good.
4:3 · to be supplied
For dynamic lines
Toxin with the frown lines
Two phase 3 trials — 61% two grades better at a month against 0% on placebo — and a label that prints the trade: brow droop 2%, eyelid droop 2%.
View details4:3 · to be supplied
When the lids are the cause
Upper blepharoplasty
Fix the lid and the frontalis stands down: its electrical activity halved at a year in a 54-patient randomised trial, with fewer headaches.
View details4:3 · to be supplied
For etched lines
A superficial filler, by cannula
The one filler licensed for forehead lines in Europe improved 83% at 12 weeks; the forehead is the highest-risk site for filler blindness, so expert hands only.
View details4:3 · to be supplied
For the low brow
An ultrasound brow lift
About 2 mm of brow for a year in a 42-person randomised blinded study — the non-surgical way to unload a working forehead.
View detailsPart 04
Safety
Toxin on the forehead: the dropped brow and the heavy lid
Label rates: eyelid ptosis 2% vs 0%, brow ptosis 2%, headache 9% vs 5%. The real risk is who you are: low brows, hooded lids and a working frontalis predict heaviness that lasts the life of the toxin. Small doses, above the convergence line, never within a centimetre of the brow, always with the glabella.
Toxin on the forehead: the dropped brow and the heavy lid
Label rates: eyelid ptosis 2% vs 0%, brow ptosis 2%, headache 9% vs 5%. The real risk is who you are: low brows, hooded lids and a working frontalis predict heaviness that lasts the life of the toxin. Small doses, above the convergence line, never within a centimetre of the brow, always with the glabella.
Two different droops. Brow ptosis is the frontalis weakened past what the face can spare: the brows sit lower, the lids look hooded, the face reads tired, for three to four months; the prescribing information puts it at 2% in the pivotal trials, and eyelid ptosis — toxin reaching the muscle that lifts the lid itself — at 2% against 0% on placebo, with headache in 9% against 5% (prescribing information). Trial patients are selected for adequate brows; in the clinic the incidence follows the patient, and the reviews name the causes plainly — wrong site, too much dose, and the wrong forehead (complications review). The prevention is anatomy: small doses spread high across the forehead above the convergence line, nothing within a centimetre of the brow, the sides treated so the lateral frontalis does not peak into a "Spock" brow, and the glabella treated so the lifters have less to fight (convergence-line study; 2025 review). An eyedrop can lift a drooping eyelid a little for the duration; nothing lifts a dropped brow except time. Photograph the brow before, review at two weeks, and take a heavy result as information for the next dose, not a reason for more.
Filler on the forehead: the arteries that reach the eye
The forehead, glabella and nose are the three sites where filler has caused blindness, because the supratrochlear and supraorbital arteries connect to the eye’s circulation; 511 cases have been published worldwide. Cannula, tiny aliquots, superficial or on the bone, hyaluronidase in the room.
Filler on the forehead: the arteries that reach the eye
The forehead, glabella and nose are the three sites where filler has caused blindness, because the supratrochlear and supraorbital arteries connect to the eye’s circulation; 511 cases have been published worldwide. Cannula, tiny aliquots, superficial or on the bone, hyaluronidase in the room.
The supratrochlear and supraorbital arteries climb the forehead from the orbit, and filler forced into either can travel backward into the ophthalmic artery and occlude the retina. The consensus on minimising embolic visual loss names the forehead, glabella and nasal dorsum as the locations of greatest risk (consensus), and the 2024 review counts 511 published cases of filler-related blindness worldwide, the majority from these central sites (2024 review). The safeguards are the ones the trials used: superficial placement for lines or supraperiosteal for contour, a blunt cannula, aliquots of a tenth of a millilitre or less, slow injection with aspiration, no forehead filler after recent toxin has changed the landmarks, hyaluronidase in the room, and an injector who knows the emergency protocol by heart. Sudden pain, blanching or any change in vision during or after treatment is an emergency in minutes. The filler guide covers it.
Ultrasound and radiofrequency: the temple nerve, the burn, the fat
The frontal branch of the facial nerve runs across the temple where brow-lift passes go; ultrasound can numb or weaken it for weeks, radiofrequency microneedling carries a regulator’s alert on burns, and both can thin the fat a hollow temple cannot spare.
Ultrasound and radiofrequency: the temple nerve, the burn, the fat
The frontal branch of the facial nerve runs across the temple where brow-lift passes go; ultrasound can numb or weaken it for weeks, radiofrequency microneedling carries a regulator’s alert on burns, and both can thin the fat a hollow temple cannot spare.
The frontal branch of the facial nerve — the one that moves the forehead — crosses the temple just under the skin on its way to the frontalis, exactly where brow-lift ultrasound passes are placed; transient numbness or a weak brow for weeks is the recognised risk, and the 42-person blinded study reported none (randomised blinded study). Ultrasound is painful for minutes and can melt superficial fat in a temple that has none to spare. Radiofrequency microneedling over the thin forehead skin burns if the depth or energy is wrong, and the FDA's alert on burns and scarring is recent (FDA alert). Ask who holds the handpiece and how many foreheads a month.
Brow lift and blepharoplasty: relapse, numbness, and the brow that drops
A brow lift numbs and itches the scalp for months, loses hair around the incisions and lets the lateral brow drift back 2–3 mm; a blepharoplasty in someone with low brows can drop them further (descent in 61% after ptosis repair). Pair the lid with the brow when both are low.
Brow lift and blepharoplasty: relapse, numbness, and the brow that drops
A brow lift numbs and itches the scalp for months, loses hair around the incisions and lets the lateral brow drift back 2–3 mm; a blepharoplasty in someone with low brows can drop them further (descent in 61% after ptosis repair). Pair the lid with the brow when both are low.
The endoscopic brow lift's costs are the scalp's: numbness and itching for months where the sensory nerves were stretched, small patches of hair loss at the incisions, and the lateral brow relapsing 2–3 mm in some series within six months (meta-analysis). The blepharoplasty's paradox is the brow: removing lid skin lets the frontalis relax, and the brow descends 1–4 mm — welcome in a brow that was being held too high, unwelcome in one that was already low, which is why eyebrow descent of at least 5% followed ptosis repair in 61% of 93 patients, more often in men and with larger skin excisions (case-control study), and why an internal browpexy or a combined brow lift is planned when the brows start low (browpexy study). Dry eye and incomplete closure follow an over-resected lid. A surgeon who assesses the brow before the lid is the one to choose.
Part 05
Frequently asked questions
Will Botox make my brows heavy?
If your forehead is working
Will Botox make my brows heavy?
If your forehead is working
Sometimes, and predictably. Toxin weakens the only muscle that lifts the brows; if that muscle was doing a job — holding hooded lids or fallen brows out of your eyes — the forehead goes smooth and the face goes heavy for three months. The trials, which select patients with adequate brows, put brow droop at about 2% and eyelid droop at 2% against 0% on placebo. Do the eyelid test before booking: close, relax, open slowly without raising. If the lids hood, ask for the frown lines only or a light dose high on the forehead, or treat the lid or brow instead. If they do not, standard dosing above the convergence line is safe in experienced hands. Photograph the brow first, either way.
My lines are there when I relax. Will toxin remove them?
Not on day one
My lines are there when I relax. Will toxin remove them?
Not on day one
Toxin removes the movement, not the print. A line present at rest has creased the collagen beneath it, and the first treatment will soften it and stop it deepening rather than erase it; with the muscle quiet across two or three cycles most etched forehead lines shallow noticeably as the skin stops being folded. The residue is a skin problem: a retinoid for the fine ones, a soft superficial gel threaded under the deep ones (83% improved at 12 weeks in the study behind its European licence), fractional resurfacing for the deepest. In a thick, flattened male forehead, structural support on the bone is sometimes what makes the furrows stop folding at all.
Why does my injector insist on treating my frown lines too?
Tug of war
Why does my injector insist on treating my frown lines too?
Tug of war
The frontalis and the frown complex are a tug of war. Weaken the frontalis alone and the corrugators and procerus pull the brows down unopposed — the mechanism of a dropped brow; weaken the frown muscles as well and the lifter needs less force, which is why forehead lines improved from grade 3.0 to 1.0 over three cycles in an 18-person pilot that treated the glabella only. The pivotal forehead trials and the licence both pair 20 units in the forehead with 20 in the glabella for this reason, and the label's brow-droop rate of 2% comes from that pairing. An injector who offers forehead-only treatment is offering a heavier brow.
Why do I have lines on one side of my forehead only?
The droopier lid
Why do I have lines on one side of my forehead only?
The droopier lid
The frontalis on each side works for its own eye. When one upper lid sits lower or hoods more, that side's forehead lifts all day and prints its lines, while the other rests. In the 160-patient series every one of the 28 patients with one-sided fixed forehead lines had eyelid ptosis on the same side. Look at a straight-on photograph: the lined side will show less upper lid and a lower brow. Toxin on that side evens the forehead and drops the brow that was already low; the fix is the lid, and a one-sided ptosis is worth an oculoplastic opinion, because some causes are medical rather than cosmetic.
Is filler in the forehead safe?
Highest-risk site
Is filler in the forehead safe?
Highest-risk site
Safe in the trials that reported it — no vascular events in the 132-patient forehead-contour trial, mild reactions in the 18-month superficial-gel study — and dangerous in the wrong hands, because the forehead's arteries connect to the eye. The consensus on visual loss names the forehead, glabella and nose as the sites of greatest risk, and 511 cases of filler blindness have been published. The precautions are specific: superficial placement for lines or on the bone for contour, a cannula, aliquots of a tenth of a millilitre or less, slow injection, hyaluronidase in the room and a clinician who knows the protocol. For most foreheads, toxin plus a retinoid gets there without the risk; filler is for the etched line that remains.
Brow lift, eyelid surgery or Botox?
Depends on the lids
Brow lift, eyelid surgery or Botox?
Depends on the lids
It depends on what the frontalis is doing. A forehead that relaxes without hooding is a toxin forehead: two phase 3 trials and a licence. A forehead that hoods when it relaxes is a working forehead, and the question is what it is holding up: if the lids carry excess skin and the brows sit at a reasonable height, upper blepharoplasty lets the frontalis stand down — its electrical activity halved at a year in a randomised trial; if the brows themselves have fallen, a brow lift — about 2 mm for a year with focused ultrasound, 3–4 mm for years endoscopically — is the treatment, and a blepharoplasty alone would drop them further. Over sixty, most working foreheads have both, and surgeons plan the lid with a browpexy or a lift. Toxin can be added lightly afterward for what movement remains.
How long does toxin last on the forehead?
3–4 months
How long does toxin last on the forehead?
3–4 months
Effect at a week, peak at two, and three to four months of a quiet forehead for the licensed products, with the movement returning gradually rather than overnight. Intradermal micro-dosing wears off sooner. The long-acting daxibotulinumtoxinA has phase 2 forehead data and a glabellar licence with longer median duration. The useful pattern is that etched lines shallow across successive cycles as the skin stops being folded, so the second and third treatments often look better than the first even at the same dose; and the useful discipline is to let the muscle come most of the way back before the next dose, so the brow's resting height can be checked each time.
How do I prevent forehead lines in my twenties and thirties?
SPF, glasses, light toxin
How do I prevent forehead lines in my twenties and thirties?
SPF, glasses, light toxin
Forehead lines are the earliest dynamic lines, and prevention is about how often the skin is folded and how well it springs back. Sunscreen every morning and a hat outdoors keep the recoil; a retinoid from the late twenties rebuilds it; sunglasses and a current prescription stop the brows lifting to see; and noticing the habit of talking with the eyebrows is free. When a line begins to stay a moment after the raise, a light toxin dose with the glabella keeps the fold from printing, with the strongest evidence on this page behind it. Filler and resurfacing are for lines that exist; the 30s guide covers the decade.
How long until I see something?
A week to six months
How long until I see something?
A week to six months
Toxin softens the forehead within a week and peaks at two, which is when brow height is compared with the photograph and the dose adjusted for next time. A superficial filler shows immediately and is judged once swelling clears at two weeks. Retinoids change the surface over eight to twelve weeks. Focused ultrasound lifts the brow over 90 days as collagen forms. Fractional resurfacing is pink for a week or two and judged at three months. Blepharoplasty and a brow lift are bruised for two weeks, presentable at a month and final at six, with scalp numbness after a brow lift lasting months. Photograph straight on, at rest and raised, before anything.
What is the cheapest thing that works, and the most effective?
€20 / month to €8,000
What is the cheapest thing that works, and the most effective?
€20 / month to €8,000
The ladder in euros: sunscreen, a hat and a retinoid (€20–40 a month, the skin half) → an eye test and sunglasses (free, the habit half) → toxin with the frown lines (€150–350 every three to four months, the strongest evidence on the page) → a superficial filler for etched lines (€300–600, six to twelve months, with the arterial caveat) → fractional resurfacing (€400–1,500) → an ultrasound brow lift for the low brow (€400–800 a year) → upper blepharoplasty when the lids are the cause (€2,500–5,000, once) → an endoscopic brow lift when the brows have fallen (€5,000–8,000, once). Patches, peptides and gadgets sit outside the ladder for this problem.
Interactive
Match a plan to your forehead
Open the situation that is yours — each link jumps to the graded section, in the order to try them.
Lines only when I raise my brows
Lines that stay even when my forehead is relaxed
My lids feel heavy, or I raise my brows to see
Toxin made my brows drop last time
Lines on one side of my forehead only
Deep furrows in a thick forehead that toxin only softens
I'm in my twenties and want to prevent them
The action plan
The plan, month by month
What happens in which order — and when it is fair to judge it. The eyelid test first, the frown lines second, the frontalis lightly, and the lid or brow when the forehead was working.
Week 0: the raise test, the eyelid test — and photograph
Dynamic or etched; working or resting; both sides compared. A straight-on photograph at rest and raised, with the brows’ resting height visible.
Day 1 onward: the skin base and the habits
Sunscreen and a hat, a retinoid, an eye test and sunglasses; notice the eyebrows when you talk.
Month 1: the frown lines, then the frontalis lightly and high
Glabella first; small doses above the convergence line, nothing within a centimetre of the brow. For the working forehead, the glabella alone.
Months 3–12: skin work for the residue, or the lid and the brow
A superficial filler or resurfacing for the etched print; eyelid surgery, an ultrasound brow lift or a brow lift when the forehead was working.
References & further reading
All claims cite peer-reviewed studies, phase 3 trials, prescribing information, consensus statements or clinical series, linked inline within each section. Primary sources: PubMed/PMC, Dermatologic Surgery, Plastic and Reconstructive Surgery, Aesthetic Plastic Surgery, Aesthetic Surgery Journal, the British Journal of Dermatology, DailyMed and the Journal of Plastic, Reconstructive & Aesthetic Surgery.
Educational content, not medical advice. The muscle that makes these lines is the muscle that keeps your brows and eyelids out of your eyes, and the arteries under this skin connect to the eye — toxin here is a matter of small doses and exact placement, filler belongs to an expert with hyaluronidase in the room, and a one-sided forehead deserves an eyelid examination before anything.