Botulinum Toxin Applications
Content owner/Author: Specialist Dr. Utkan Kızıltaç — Dermatology Specialist
Last medical review and update: September 10, 2026
Botulinum toxin is an injection treatment used to temporarily reduce the activity of specific muscles. In dermatology and cosmetic medicine, it is most commonly used to reduce dynamic lines caused by facial muscles; however, it also has other medical applications, such as treating excessive sweating.
The goal of aesthetic procedures is not to completely immobilize the face, but rather, in suitable patients, to achieve a more rested and natural appearance by reducing unwanted muscle activity in a controlled manner.
Briefly, what you need to know
Botulinum toxin is not a filler.
Its effect is not permanent.
The results are not visible immediately after application.
Not every wrinkle can be corrected with botulinum toxin.
Ultimately, it's not just the dose that matters, but also which muscle you want to target, at what point, and to what extent.
The treatment plan should vary depending on the individual's facial anatomy and expressions.
Dynamic facial examination before the procedure is important.
How does botulinum toxin work?
Botulinum toxin reduces the contractile force of the muscle to which it is applied by temporarily blocking the release of acetylcholine at the neuromuscular junction.
In aesthetic procedures, the result is a reduction in lines that become more prominent, especially during facial expressions.
The nerve or muscle is not permanently destroyed. Since nerve-muscle communication regenerates over time, the effect gradually diminishes.
What is the difference between botulinum toxin and fillers?
These two processes are often confused, but their mechanisms of operation are different.
Botulinum toxin: Reduces muscle activity.
Fillers: Applied to add volume or structural support to tissue.
For example, if the underlying cause of a dynamic line that appears when frowning is excessive muscle activity, botulinum toxin may be suitable. However, the solution for a hollowness in the face due to volume loss is not the same.
In some patients, both approaches may be considered together.
Which regions is it applicable to?
The most frequently evaluated areas for aesthetic purposes are:
Between the eyebrows: Glabellar lines that form when frowning.
Forehead: Horizontal lines formed by the frontalis muscle.
Eye area: Lateral canthus lines, also known as "crow's feet," become more prominent when smiling.
In addition, depending on the patient's anatomy and the treatment goal, it can also be used in some areas of the lower face and neck.
Can botulinum toxin be used for every wrinkle?
No.
The distinction between dynamic and static lines is important here.
The lines that appear during facial expressions are closely related to muscle activity and may respond better to botulinum toxin.
For static lines that have been present for many years and become more prominent even when the face is motionless, simply reducing muscle activity may not completely eliminate the lines.
Therefore, we first need to assess why the line formed.
How is the application of natural botulinum toxin planned?
The natural outcome doesn't simply mean "doing a low dose.".
Facial muscles do not work independently of each other. The position of the eyebrows, for example, is related to the balance between the muscles that raise and lower the eyebrows.
Therefore, before the procedure, the patient must:
facial anatomy,
eyebrow position,
eyelid structure,
muscle strength,
Asymmetries between the two sides of the face,
movements during rest and facial expressions
It should be evaluated.
The goal is not to apply the same injection schedule to everyone, but to create a muscle balance appropriate to the individual's anatomy.
How is the process carried out?
First, the face is evaluated both in a relaxed state and during facial expressions.
After identifying the muscles to be treated and the injection points, botulinum toxin is applied to the targeted areas using very fine needles.
The process is usually quick.
Temporary redness, mild swelling, or minor bruising may occur at the injection sites.
When does its effect begin?
The effects of botulinum toxin are not immediate.
Initial changes may usually start to be noticeable within a few days; however, it may take up to two weeks to assess the final effect.
Therefore, it is not accurate to evaluate the results the day after the procedure.
How long does the effect last?
The effect is not permanent.
The duration of the effect can be affected by the individual's muscle structure, the product used, the dosage, the application area, and personal characteristics. In aesthetic procedures, the effect is generally expected to last for several months.
Therefore, this is a definite statement for everyone:
“"It takes exactly 4 months."”
No guarantee can be given regarding the exact effect or duration.
Does botulinum toxin make the face expressionless?
Not necessarily.
The extent to which the wording will change depends on the implementation plan.
The goal does not have to be to eliminate all facial expressions. Depending on the patient's wishes and anatomy, preserving certain movements may be the objective.
However, “natural Botox” is not a separate drug or scientific technique name. The naturalness of the result is largely related to patient selection, anatomy, dosage, and injection planning.
Are there any side effects of botulinum toxin?
Like any medical procedure, botulinum toxin injections have potential side effects.
At the injection site:
pain,
redness,
swelling,
sensibility,
bruising
visible.
Temporary symptoms such as headaches may occur.
Depending on the anatomical location and injection technique, unwanted muscle involvement may occur. For example, drooping of the eyebrows or eyelids in the upper face, asymmetry, or unwanted changes in facial expressions may be observed.
Most of these are temporary; however, a good understanding of facial anatomy and the properties of the product being used is necessary to minimize the risk of complications.
Who is it not applicable to, or who requires special assessment?
Cosmetic botulinum toxin applications are generally avoided during pregnancy and breastfeeding.
In some cases, the application may not be suitable or may require special evaluation, such as certain neuromuscular diseases, certain medications being used, active infections at the application site, and known hypersensitivity to the components of the botulinum toxin preparation.
Therefore, obtaining a medical history before the procedure is important.
What precautions should be taken after botulinum toxin injection?
Post-implementation recommendations should be evidence-based and free from unnecessary restrictions.
Following the procedure, it is sufficient to follow the specific recommendations given by the physician. It is advisable to avoid unnecessary manipulation of the injection sites and to contact the physician who administered the procedure if any unusual symptoms develop.
“We will not publish rituals with weak evidence support, such as "never bend over for 24 hours," "sleep for a certain number of hours," or "don't drink coffee for three days," as if they were scientific information.
How often should botulinum toxin be administered?
There is no fixed calendar that is mandatory for everyone.
The timing of a repeat treatment can be determined by evaluating the individual's facial expressions, treatment goals, and response to previous treatments, as the effect diminishes.
Applying it too frequently doesn't necessarily mean better results.
Is botulinum toxin addictive?
There is no evidence that it is pharmacologically addictive.
When the treatment is stopped, the face does not "have to be worse than before." The effect of botulinum toxin diminishes over time, and muscle activity returns.
Can excessive sweating be treated with botulinum toxin?
Yes.
One of the important medical uses of botulinum toxin in dermatology is for hyperhidrosis, or excessive sweating. It can temporarily reduce the nerve signals that stimulate sweat glands, particularly in areas like the armpits.
However, the assessment of hyperhidrosis and the dosage/application approach used differ from that of cosmetic facial treatments.
Frequently Asked Questions
Are botulinum toxin and Botox the same thing? Botulinum toxin is the generic name for the active ingredient. Botox, on the other hand, is the brand name for one of the commercial products containing botulinum toxin type A.
Is there a specific age for getting a cosmetic procedure for the first time? There is no single ideal starting age for everyone for cosmetic procedures. The decision should be based more on anatomical structure, facial expressions, the condition of wrinkles, and the individual's expectations, rather than chronological age.
Does botulinum toxin lift eyebrows? By altering the balance of specific muscles, limited changes in eyebrow position can be achieved. However, it is not accurate to describe this as equivalent to a surgical eyebrow lift.
Is the procedure painful? Very thin needles are used, and most people describe the procedure as a brief, prickling sensation.
Can I stop getting botulinum toxin injections? No. If the treatment isn't repeated, its effect will diminish over time and muscle activity will return.
Can it be applied to men as well? Yes. However, the treatment plan will vary from person to person as muscle mass, anatomy, and aesthetic goals may differ.
Clinical Note by Dr. Utkan Kızıltaç
For me, the key to botulinum toxin application is not just looking at where the line is, but also evaluating the muscle movements that create that line and the overall balance of the face. Instead of applying the same amount to the same points in everyone, considering the individual's anatomy, eyebrow position, and facial expressions together allows for a more natural and controlled result.
Related content
Furthermore, I haven't used sales pitches here such as price, number of units, "3-area Botox," campaign, best Botox, or non-surgical rejuvenation. These both diminish our goal of scientific authority and are areas that need to be considered separately in terms of healthcare promotion regulations in Türkiye.
Scientific Resources
• American Academy of Dermatology — Botulinum toxin therapy: overview. https://www.aad.org/public/cosmetic/wrinkles/botulinum-toxin-overview
• American Academy of Dermatology — Botulinum toxin therapy: FAQs and safety. https://www.aad.org/public/cosmetic/wrinkles/botulinum-toxin-faqs
• Liu S, et al. Use of LetibotulinumtoxinA for Aesthetic Treatment of Asians: A Consensus. Aesthet Surg J, 2023. https://pubmed.ncbi.nlm.nih.gov/37220644/
Medical content: Dr. Utkan Kızıltaç, Dermatology Specialist
Dermatology Examination and Appointment
You can get information about dermatological evaluation and appointments for Botulinum Toxin Treatments.
On this page
- Briefly, what you need to know
- How does botulinum toxin work?
- What is the difference between botulinum toxin and fillers?
- Which regions is it applicable to?
- Can botulinum toxin be used for every wrinkle?
- How is the application of natural botulinum toxin planned?
- How is the process carried out?
- When does its effect begin?
- How long does the effect last?
- Does botulinum toxin make the face expressionless?
- Are there any side effects of botulinum toxin?
- Who is it not applicable to, or who requires special assessment?
- What precautions should be taken after botulinum toxin injection?
- How often should botulinum toxin be administered?
- Is botulinum toxin addictive?
- Can excessive sweating be treated with botulinum toxin?
- Frequently Asked Questions
- Clinical Note by Dr. Utkan Kızıltaç
- Scientific Resources
