Key facts at a glance
- Botulinum toxin can reduce muscle tension around a fresh scar.
- Less tension on the wound can help scars heal more finely. Randomised studies point in this direction.
- Its use for scar treatment is off-label. Detailed medical information is therefore particularly important.
- We will clarify during your consultation whether the treatment is suitable for your scar.
Scars are a natural part of the healing process after surgery or injury. For many people, however, they are not only a cosmetic problem but can also cause a feeling of tightness or restricted movement. In recent years, botulinum toxin has increasingly been studied as a way to improve scar formation. But how exactly does this work, and what does science say? In this article, you will learn how botulinum toxin is used in scar treatment, what studies show and what it means when a treatment is “off-label”.
How does B-Tox work in scar treatment?
Botulinum toxin is known for its ability to relax muscles. In aesthetic medicine, it is often used to smooth wrinkles. But its use goes further: it can also be injected directly into or along scars to reduce tension in the surrounding tissue.
After an operation or injury, the tissue often contracts, which leads to increased tension in the scar. This tension can have a negative effect on scar formation and lead to wider or more conspicuous scars. By injecting B-Tox, the muscle activity around the scar is inhibited, which reduces the tension in the tissue. This allows the scar to heal finer and less visible.
Scientific evidence: What do studies say?
Several studies have examined the use of botulinum toxin in scar treatment. A randomised, placebo-controlled study by Gassner and colleagues (Mayo Clinic Proceedings, 2006) examined forehead wounds after injuries or tumour removal: after six months, independent assessors rated the scars treated with botulinum toxin better than those in the comparison group. A prospective, randomised study by Ziade and colleagues (Journal of Plastic, Reconstructive & Aesthetic Surgery, 2013) reached a similar result for facial wounds when treatment was given within 72 hours of surgery.
Systematic reviews that summarise several such studies also reach a predominantly positive conclusion, but point to small patient numbers and differing study designs. The studies suggest that botulinum toxin can improve scar formation – especially for surgical scars where tissue tension plays a role. There is no guarantee of a particular result.
What does „off-label“ mean in aesthetic medicine?
The use of botulinum toxin in scar treatment is “off-label”. But what does that actually mean? The term “off-label” describes the use of a medicine outside its approved indications. In Germany, botulinum toxin is approved for certain expression lines, excessive sweating (hyperhidrosis) and certain neurological conditions, among others. It is not approved for scar treatment.
Off-label means that the manufacturer has not tested the use for this purpose in the approval process. Doctors may nevertheless use a medicine in this way if it is medically justified and patients are informed about it. That is why we discuss the off-label nature of the treatment as well as possible risks, benefits and alternatives with you in detail.
Who is the treatment suitable for?
Botulinum toxin for scar treatment is mainly an option for people who want a finer, less noticeable scar after surgery or injury. Especially for scars in areas of high skin tension, such as the chest or shoulders, it can be a useful addition to conventional scar care.
It is important to emphasise, however, that the treatment should be tailored to the individual. Not every scar is suitable for an injection, and not every patient responds in the same way. We often combine different methods to suit the type and extent of the scar. More on this on our page on Scar treatment in Hamburg.
Conclusion
The use of botulinum toxin in scar treatment is a promising field of aesthetic medicine. Studies show that injecting it into or along scars can reduce tissue tension and thus contribute to finer, less visible scars. As this is an off-label use, it is important to be well informed and to discuss the treatment with a qualified doctor. If you would like to learn more about this method or have questions, we will be happy to advise you personally. A well-informed decision is the first step towards a successful treatment.
Frequently Asked Questions
When is the best time for the treatment?
In studies, treatment was usually given early, i.e. in the first days after surgery or injury while the scar is still forming. We decide after the examination whether and when treatment makes sense.
Can botulinum toxin also improve older scars?
The available studies mainly concern fresh scars. For older scars, other or combined methods are often an option, which we will explain to you during your consultation.
Why is the treatment off-label?
Because botulinum toxin is not approved for scar treatment. Its use is still possible but requires a medical justification and detailed patient information.