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BOTULINUM TOXIN INJECTIONS : BEFORE/AFTER, WHAT CAN YOU EXPECT ?

Last updated : 4 June 2026

Botulinum toxin injections are among the most widely performed aesthetic medicine procedures worldwide. Used mainly to reduce certain expression lines, they preserve facial freshness while preventing skin ageing.
Before the procedure, it is normal for patients to want to know the results before and after a botulinum toxin injection. Which changes are visible immediately ? How does the face evolve in the following days ? Which areas can be treated ?
Here is a complete analysis of the before/after result of a botulinum toxin injection to understand its effects, limitations and aesthetic benefits.

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Before injection : a mobile face, sometimes marked by emotion

Expression lines result over time from repeated contraction of facial muscles. Frowning, squinting or raising the forehead gradually deepen lines that become fixed and permanent with age. Before any injection, the face retains its natural mobility, but certain areas develop deeper wrinkles, sometimes creating a tired or severe expression.
During consultation, the doctor performs a dynamic facial analysis. They observe muscle mobility, expression balance, areas of tension and how wrinkles form with each movement. This precise study develops a tailored treatment plan adapted to the patient's morphology and the subtlety of the desired result.

After injection : a gradual, natural effect

Unlike hyaluronic acid, whose effect is immediate, botulinum toxin acts gradually. Initial changes appear between the third and fifth day, reaching full effect after around ten to fifteen days.
Once treatment is performed, the targeted muscles relax, allowing the skin to 'smooth' naturally. Expression lines diminish and sometimes disappear according to their depth. The face regains a more relaxed, open and youthful expression without losing the liveliness of its features.
Untreated areas remain fully mobile, preserving expression balance and authenticity. The result is harmonious, measured and adjustable : the face keeps its personality but loses signs of tension.

Botulinum toxin before/after results according to treated areas

Botulinum toxin's effects differ according to the muscles targeted, dose administered and skin quality before treatment. Each variable influences the final result. Here are the main areas concerned and improvements that can reasonably be expected.

• Forehead : before treatment, the forehead has horizontal wrinkles of varying depth associated with repeated eyebrow elevation. After injection, forehead skin becomes smoother, forehead lines diminish and the face appears more relaxed and luminous.
• Glabella : before injection, the frown line, a vertical wrinkle between the eyebrows, often gives the face a worried or closed expression. After botulinum toxin injection, the eyes relax, the eyebrows reposition slightly and the overall expression becomes softer and more serene.
• Crow's feet : these lines visible at the outer eye corners appear from the thirties, accentuated by smiling and sun exposure. Botulinum toxin reduces them without freezing the eyes, preserving spontaneous expressions. After treatment, the eyes appear more rested and brighter, with an immediate rejuvenating effect.
• Eyebrows : when botulinum toxin is injected to treat crow's feet and frown lines, a slight eyebrow-lifting effect is observed. Before injection, the eyebrow may appear drooping, particularly because of skin laxity. After treatment, it is slightly raised, opening the eyes without surgery.

Before treatment, these areas often show tension or imbalanced volume ; after injection, features soften and the face regains more natural harmony.

Result duration and session frequency

Botulinum toxin's effect is temporary. It lasts an average of four to six months according to the treated area, dose injected and each patient's metabolism. This variation is perfectly natural : heavily used areas, such as the forehead or eye contour, may require an earlier touch-up, whereas other regions retain their effect longer.
Over time and with regular sessions, the duration of action tends to increase. The muscles concerned gradually lose the habit of excessive contraction, allowing injections to be spaced further apart while maintaining a visible result.
To preserve facial balance and prolong treatment benefits, scheduling two to three sessions a year is generally advised. At each visit, the doctor assesses muscular changes, skin quality and aesthetic expectations to adapt the dose and protocol to the patient's morphology.
In Geneva, this personalised approach ensures measured, elegant results fully consistent with modern aesthetic medicine's philosophy : correct without transforming, enhance without freezing.

What can be expected from well-injected botulinum toxin

A correctly performed botulinum toxin injection offers subtle rejuvenation without altering features or freezing expressions. The face looks calmer and more rested while retaining natural liveliness.
The result is noticeable through restored harmony rather than transformation : patients do not look “injected”, they simply appear in better form, as after prolonged rest. This discretion is precisely what makes treatment successful.
A properly dosed, correctly performed injection respects facial proportions and preserves character. It also acts preventively by slowing the establishment and progression of expression lines, particularly in younger patients wishing to preserve skin quality in the long term (Baby botulinum toxin).

What should not be expected from a botulinum toxin injection

Botulinum toxin is not intended to correct deeply marked static wrinkles, volume loss or skin laxity. In these situations, other treatments are more suitable, such as hyaluronic acid, Skinboosters, radiofrequency or ablative lasers.
A frozen or artificial face is never caused by the product itself, but by excessive injected units or poorly mastered technique. It is therefore essential to entrust treatment to an experienced doctor trained in injection protocols and subtle analysis of facial expressions. Only an expert hand can ensure a natural, balanced result faithful to the patient's personality.

Conclusion : botulinum toxin before/after 

Botulinum toxin injection results are gradual, visible and entirely natural when performed by an experienced doctor. This treatment smooths certain expression lines, refreshes the eyes and preserves facial harmony.
In Geneva, for a balanced, personalised result, it is essential to consult a doctor trained in the technique who can establish a tailored treatment plan respecting your expectations and uniqueness.

Dr Valeria Romano

Article written by Dr Valeria Romano

Dr Valeria Romano supports each patient with a comprehensive approach to the aesthetics of the face, body and intimate areas, and to skin and hair quality. Every treatment is based on a personalised medical assessment.

Learn more about Dr Valeria Romano
Contact Dr Valeria Romano : +41 78 209 02 89 dr.romano.valeria@gmail.com

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