01

Understanding different lines

Some wrinkles appear mainly with facial movement; others remain visible at rest and involve changes in skin or volume. The doctor examines your face at rest and in motion, brow position and existing asymmetry. Your concerns are considered alongside what treatment can realistically achieve.

02

Where botulinum toxin may fit

Botulinum toxin temporarily affects the activity of selected muscles. It may be considered for certain expression lines according to applicable indications and examination. It does not replace lost volume. The goals, areas and dose are medical decisions rather than an automatic recommendation based on age.

UPPER-FACE EXPRESSION LINES

Before / after

Illustrative simulation

Forehead, frown lines and crow’s feet: visualising softer lines with a natural expression.

Male example

Illustrative simulation — Male example — Before
Before
Illustrative simulation — Male example — After · projection
After · projection
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Female example

Illustrative simulation — Female example — Before
Before
Illustrative simulation — Female example — After · projection
After · projection
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These comparisons illustrate possible changes; they do not document treated patients. Actual outcomes and the number of sessions vary.

03

A corrective effect and preventive potential

By temporarily reducing the contraction of selected muscles, botulinum toxin softens some existing expression lines, particularly on the forehead, between the eyebrows and around the eyes. Reducing repeated skin folding may also help limit the development of some lines visible at rest. A published comparison of two identical twins, one treated regularly for 13 years, supports this possibility. However, an observation involving two people cannot quantify a slowing of overall ageing. The response of deeply established lines and an appropriate maintenance schedule are discussed individually.

04

Gradual effect and review

Changes develop over the days following injection and are assessed once settled. The effect then wears off over time; duration varies between people and areas. Your doctor explains when a review is appropriate. Neither an immediate result nor a fixed duration can be guaranteed.

05

Limitations and possible adverse effects

Bruising, local discomfort or headache may occur. Asymmetry, temporary drooping of an eyelid or brow and other effects are possible depending on the site. Mention neuromuscular conditions, medicines, pregnancy or breastfeeding. Difficulty swallowing or breathing after an injection requires urgent medical help.

06

Alternatives and planning

Skincare, sun protection, other techniques or no treatment may be suitable. The choice depends on the muscular, skin and volume components. Book an aesthetic consultation for an individual assessment; the quotation details the proposed services and their fees.

FAQ

Your questions

Are results permanent?

No. The effect is temporary and movement returns progressively. The suitability of another session is reassessed.

Will my face look frozen?

The result depends on indications, areas and dose. Your preferences regarding movement are discussed, but a specific outcome cannot be guaranteed.

Should I stop medication beforehand?

Do not stop prescribed medication yourself. Give the doctor a list of your medicines and supplements.

Can botulinum toxin also have a preventive role?

A local preventive effect is possible through reduced repetitive skin folding. Long-term evidence remains limited and cannot support a promise of a specific number of years of ageing avoided. Suitability depends on examination and your goals.

References and further reading

Manufacturer instructions describe a product; they do not guarantee clinical results. Information on this website does not replace a consultation.

Updated 13 November 2026General information · Dr Sami Hamwi, dermatologist