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Forehead botulinum toxin

€15015 min

Cosmo Clinic Team

Forehead Botox is a popular non-invasive aesthetic treatment designed to reduce horizontal lines across the forehead. By injecting botulinum toxin (Botox) into the frontalis muscle, the treatment relaxes overactive facial muscles and smooths expression lines – giving the forehead a youthful, refreshed appearance.

At Cosmo Clinic in Lisbon, forehead botulinum toxin is always assessed alongside the glabellar area and brow to ensure a balanced result appropriate for each patient's anatomy. Dosage and placement are critical — overtreating the forehead can affect brow position. Treatment takes around 15 minutes with no downtime.

Your first consultation at Cosmo Clinic is free. Our English-speaking doctors will assess your forehead anatomy and explain the expected outcome before any treatment takes place.

Forehead botox

Results

Visibly smoother forehead skin.

Visibly smoother forehead skin.

Reduced appearance of dynamic wrinkles.

Reduced appearance of dynamic wrinkles.

More relaxed and rested facial expression.

More relaxed and rested facial expression.

Results begin to appear in 3–5 days and last 3–6 months.

Results begin to appear in 3–5 days and last 3–6 months.

Key Features

Quick treatment: 10 minutes on average.
No surgery, no downtime.
Return to daily activities immediately.
Precise muscle targeting for natural expressions.
Ideal for first signs of aging or wrinkle prevention.

Clinical Guide

Botulinum Toxin: Complete Guide

Mechanism, treatment areas, real protocol, recovery and contraindications.

Read the guide

FAQ

On average, forehead Botulinum toxin lasts between 3 and 6 months. Duration varies with metabolism, dose, and the activity of the frontalis muscle. With regular maintenance, muscles respond in a more measured way over time and the interval between sessions tends to extend.

Yes, but the outcome depends on how long the lines have been established. Dynamic lines respond very well to botulinum toxin; deeper static wrinkles may require a combined approach with hyaluronic acid, biostimulators or skinbooster protocols. Our medical team assesses each case during consultation.

The dose is always personalised, based on anatomy, frontalis muscle strength and your aesthetic goal. The exact quantity is defined during consultation after clinical assessment, we don't share standard dosages because every face has its own muscular blueprint.

When the treatment is performed by qualified professionals with correct technique and respect for anatomy, the risk of ptosis is very low. Proper consultation and precise marking of injection points are essential to preserve the function of the eyelids and brows.

Maintenance is usually done every 4 to 6 months, whenever expression lines begin to return. Repeating before the effect has fully worn off produces more stable results and a consistently smooth appearance throughout the year.

★★★★★

“The doctor put me completely at ease. In a few days my face looked more rested and rejuvenated, without losing expression.”

Bruna C., Google

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What is forehead Botox

Forehead Botox is one of the most requested treatments in aesthetic medicine in Lisbon. Botulinum toxin type A is injected into strategic points of the frontalis muscle to relax the repeated contractions that, over the years, form the horizontal lines across the forehead. The outcome is visibly smoother skin without compromising the natural movement of the face.

Who is it for

The treatment suits both men and women, typically from age 28–30, who start to notice defined expression lines on the forehead or want a preventative approach. It is not recommended during pregnancy, breastfeeding, in cases of neuromuscular disorders, or when there is active infection in the treatment area. During consultation, our medical team reviews your history and confirms whether Botox is appropriate for you.

What to expect from the session

The session begins with an in-person medical consultation to assess muscular dynamics and map out the injection plan. After skin cleansing, botulinum toxin is delivered with a microneedle across 4 to 8 points on the forehead. A session typically lasts 15 to 30 minutes, requires no anaesthesia, and allows you to return to normal activities the same day.

Results timeline

Botulinum toxin begins to take effect between day 3 and day 4 after injection. Peak results appear between days 10 and 14, when the horizontal lines are evenly softened. Average duration is 3 to 6 months, varying with metabolism and facial expressiveness. A follow-up review takes place at our check-in consultation about two weeks later.

Aftercare

For the first 4 hours, avoid lying down or tilting the head forward. Within the first 24 hours, refrain from intense exercise, sauna, or very hot baths. During the first week, do not massage the treated area, postpone facial treatments, and protect the skin with appropriate sun protection whenever exposed.

Why Cosmo Clinic

At Cosmo Clinic in Lisbon, forehead Botox is always performed by doctors trained in aesthetic medicine, guided by a clear philosophy: natural results, without overdoing it. We see patients in Portuguese and English, assess each face individually, and adapt our technique to your own muscular blueprint so your expression stays yours, just more rested.

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