Glabellar botulinum toxin (Frown lines)
Cosmo Clinic Team
Glabellar Botox, also known as Botox for frown lines, is a targeted treatment designed to reduce the vertical lines that form between the eyebrows – often called "11s". These lines are caused by repeated muscle movements such as frowning or squinting. Botox works by relaxing the corrugator and procerus muscles to soften the appearance of these deep-set lines.
At Cosmo Clinic in Lisbon, glabellar treatment is one of the most requested procedures. Our doctors assess muscle depth and movement pattern individually to ensure accurate placement and a natural result. Visible improvement typically develops within three to five days.
Book a free first consultation at Cosmo Clinic to speak with one of our English-speaking doctors about frown line treatment.
Results
Smoother skin between the eyebrows.
Reduction of harsh or angry expressions.
More relaxed and refreshed appearance.
Noticeable improvement within 3–5 days, lasting 3–6 months.
Key Features
Before & After
Real patients. Natural outcomes, documented with consent.
Individual results may vary.
Clinical Guide
Botulinum Toxin: Complete Guide
Mechanism, treatment areas, real protocol, recovery and contraindications.
FAQ
What are the '11 lines' between the eyebrows?
The so-called 11 lines, or glabellar lines, are the two vertical wrinkles that appear between the eyebrows from repeated activity of the corrugator and procerus muscles. Over time, this repeated contraction marks the skin and can make the face look tired, tense, or upset even at rest. Botulinum toxin relaxes these muscles and softens the area.
Will the treatment make my gaze less expressive?
When technique is precise and dosage matched to your anatomy, the gaze remains natural. The goal is to relax only the muscles responsible for the vertical lines between the eyebrows, preserving overall facial mimicry and the natural lift of the upper face.
Can I combine glabellar Botox with other treatments?
Yes. In cases of deep, already-established glabellar lines, Botulinum toxin is often combined with hyaluronic acid in the same area, or with biostimulators to restore skin quality. The combined plan is defined during consultation, based on the condition of your skin.
At what age does it make sense to treat the 11 lines?
There is no exact age. Most patients seek treatment between 28 and 40, when they start noticing the lines at rest. People who frown often may choose a preventative approach earlier, always after a proper medical assessment.
How long until I see results between the eyebrows?
Early signs of muscle relaxation appear between day 3 and day 5. The final result stabilises between days 10 and 14 after injection. From that point, the area remains smoothed on average for 3 to 6 months, with a review at our follow-up consultation.
