Botox brow lift: how it works, cost and before and after

A Botox brow lift aims to raise the eyebrows by relaxing selected muscles around them, and Cleveland Clinic describes exactly this — the “chemical brow lift” — as an off-label use, alongside treating lip lines and neck laxity. (The Clinic's list predates October 2024, when platysma bands joined the Botox Cosmetic label; skin laxity itself is still off the label.) It lists brow shaping and elevation among the off-label Botox uses it offers.

Botox Cosmetic (onabotulinumtoxinA, made by Allergan, an AbbVie company) is approved in adults for four cosmetic areas: moderate to severe frown lines, crow's feet, forehead lines and platysma (vertical neck) bands.

No other cosmetic area is on the label, so lifting the eyebrows is not on any current US label for Botox or for any other neurotoxin.

The Botox guide covers the drug as a whole, and the series map of all Botox areas separates the four labeled areas from the off-label ones.

The drug works by blocking acetylcholine release at nerve endings, which produces a partial, localized reduction in muscle activity; reinnervation, the slow regrowth of those nerve connections, is what reverses the effect.

In a brow lift, that same effect is aimed at muscles around the brow, with the goal of letting the eyebrows sit a little higher.

The label itself shows how much muscle balance matters in this part of the face: forehead lines are treated only together with the frown lines — 20 units to the forehead plus 20 units to the glabella, 40 units in total — a pairing the label says minimizes the potential for brow ptosis, with the lower row of forehead injections placed at least 2 cm above the eyebrow.

A brow lift works on that same balance from the other direction, without a labeled dose or injection map to follow.

No label defines the candidate for a brow lift, because the use is off-label: whether it suits a particular person — brow position, muscle pattern, medical history — is a question for a licensed provider who can examine how your brows move.

The label's rules about the product itself still apply to any cosmetic use of it.

Botox Cosmetic is contraindicated in people with known hypersensitivity to any botulinum toxin product or to any ingredient in the formulation, and it is not to be injected where there is an infection at the planned site.

People with neuromuscular disorders — myasthenia gravis, Lambert-Eaton syndrome and ALS are the label's examples — may be at increased risk of clinically significant effects.

On pregnancy and breastfeeding there are no adequate human data and no data on whether the drug passes into breast milk.

Units first: we could not find a label, consensus statement or high-quality study that gives a unit range for a Botox brow lift — the area is off-label and doses are injector-determined, so any number a practice quotes for the lift specifically is that injector's own plan.

The nearest labeled anchor sits next door: 40 units in total, 20 to the forehead plus 20 to the glabella, a dose the label sets for treating lines together, not for moving brow position.

On money, the structure is knowable even where the unit count is not.

Botox and other toxins are typically priced per unit or per treatment area, and label doses act as a floor for the unit count an area needs, so an area's cost works out to roughly units times the practice's per-unit price.

We could not confirm a current national average price for neuromodulator injections — the ASPS statistics report for 2025 that we checked omits fees for minimally invasive procedures — so the numbers that matter are the ones on a practice's quote: its price per unit, and the units it plans for you.

Onset comes first, and the closest timing data are the label's own, written from the frown-line studies: muscle relaxation typically begins 1 to 2 days after injection and increases in intensity during the first week.

The American Academy of Dermatology says most people see results within 3 to 7 days, with improvements lasting about 3 to 4 months, sometimes longer.

On duration, scope matters.

The label's one figure — approximately 3 to 4 months — is stated for glabellar (frown) lines, and no labeled duration exists for a brow lift, so any month count quoted for the lift itself is an estimate rather than a label figure.

The effect is temporary by mechanism: reinnervation slowly restores the nerve connections the drug blocks.

The label adds that dosing more often than every 3 months has not been clinically evaluated, which makes retreatment timing a provider decision.

On before and after: Botox before and after walks through what the trials measured, area by area and day by day.

The area-specific risk in this part of the face is brow ptosis — a heavy or dropped brow.

In the Botox Cosmetic forehead-line trials — 665 adults given 20 units to the forehead plus 20 units to the glabella — the adverse reactions above placebo were headache in 9% (against 5% on placebo), eyelid ptosis in 2%, brow ptosis in 2% and skin tightness in 2%.

In the labeled frown-line protocol, eyelid ptosis occurred in 3% of treated people (0% on placebo).

Those rates come from trials of labeled doses for lines — we found no equivalent trial table for a brow lift.

The label manages the dropped-brow risk through placement: the lower row of forehead injections sits at least 2 cm above the eyebrow and the frown area is treated at the same time, and to reduce eyelid ptosis the label keeps injections away from the levator palpebrae superioris, places the lateral corrugator injections at least 1 cm above the bony supraorbital ridge and keeps them no closer than 1 cm above the central eyebrow.

When the goal is moving the brow rather than softening a line, that kind of precision is the skill you are choosing an injector for.

On top of the trial rates sit the effects any injection can cause — localized pain, swelling, redness, tenderness and bruising.

The label says adverse reactions generally occur within the first week and, while often transient, may last several months or longer, and the Medication Guide advises avoiding driving or dangerous activities if loss of strength, vision problems or drooping eyelids occur.

Injecting botulinum toxin is the practice of medicine, as the American Med Spa Association (AmSpa) puts it — a prescription drug is being used to affect living tissue — so, in AmSpa's reading, the injection belongs to a physician, an independent-practice nurse practitioner or another licensed professional working within their scope, under rules that vary by state.

The label adds its own requirement: those who administer Botox Cosmetic must understand the relevant neuromuscular and structural anatomy of the treated area.

With no labeled injection map for a brow lift, that anatomy knowledge is worth asking about directly.

The CDC advises getting botulinum toxin injections only from a licensed, trained provider using product from an authorized source, and cautions that the procedure is not without risk even when FDA-approved product is given correctly.

Authenticity has a concrete check: FDA warned in April 2024 that counterfeit Botox had been given to consumers for cosmetic purposes in multiple states, with hospitalizations among the reported adverse events, and genuine Botox Cosmetic shows U.S. License number 1889 on the vial and carton — the label says not to use it if that number is missing or the tamper-evident features look broken.

For an off-label look, the useful questions are concrete: how many units the provider plans, where they will place them, what change they expect and when, the per-unit price, and how often they treat the brows this way.