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When does botulinum toxin start working, and for how long?

The effects of botulinum toxin usually develop over several days. The timing of assessment and any follow-up depend on the product, area and individual course. Its effects are temporary and may last for several months; their strength and duration vary.

As muscle activity returns, expression lines may become more noticeable again. Before repeat treatment, the findings, desired change and instructions for the specific medicine are considered.

Science, visualisedPUBMED ·

When does a forehead line count as clearly improved?

Both clinician and participant had to agree in this study: improvement of at least two grades after 30 days.

Both assessments met · %

Both assessments met · %. OnabotulinumtoxinA: 61.4; Placebo: 0.0

Day 30 · at least 2 grades on the Facial Wrinkle Scale.

How to read this chart This strict study threshold is not a personal guarantee. It cannot be transferred to other products, areas or every wrinkle depth.

Data & study design

Randomized phase III trial, 391 people in the intention-to-treat analysis. Forehead and glabellar lines were treated together.

Both assessments met · %
Group / time pointStudy value
OnabotulinumtoxinA61.4
Placebo0.0

Personal experience

Personal accounts can offer insight into expectations and recovery. They do not allow firm conclusions about your own outcome. The main considerations are your clinical findings, the chosen method, clear explanations and reliable aftercare. When viewing photographs, consider how they were taken and how much time had passed since treatment.

How safe is Botox treatment today?

How safe botulinum toxin treatment is for you depends on the findings, product, dose and personal risks. Even correctly used medicines can cause side effects. Depending on the area, these may include pain, bruising or unwanted weakening of nearby muscles.

Rarely, more widespread toxin effects can cause serious symptoms. Difficulty swallowing, speaking or breathing requires immediate medical help. Units of different products are not freely interchangeable; dosing and use follow the relevant product information and medical assessment.

More questions?

For questions or a personal appointment enquiry, contact us by email at contact@mcaesthetics.de or via WhatsApp.

You can find further insights on the social media channels linked here. The content shown there does not replace a personal medical consultation. A natural, expressive face is the aesthetic focus at Mc Aesthetics. Setting goals means considering lines in a way that suits the person, without treating a rigid or completely smooth face as an ideal.

Before treatment, the clinical findings, expectations, suitable procedures, alternatives and personal risks are discussed.