Botox typically begins to work within 3–5 days, with the full effect usually visible at around 14 days. For wrinkle areas such as the forehead and crow's feet, softening is gradual; for jaw Botox, visible slimming takes longer, often 4–8 weeks. At Re:berry Hongdae, results are reviewed after about two weeks. Results vary by individual.
Re:berry Clinic Hongdae · Information reviewed for accuracy · Results vary by individual.
Why does Botox not work instantly?
Botulinum toxin works by blocking the release of acetylcholine, the chemical messenger that tells a muscle to contract. After injection, the toxin needs time to bind to nerve endings and take effect. As signals decrease, the muscle relaxes and the lines it creates soften. This process usually takes a few days to begin and up to two weeks to complete.
What is the timeline for different areas?
Forehead, frown lines and crow's feet
Many people notice reduced movement after 3–5 days, with the full result at about 10–14 days. See Botox for wrinkles.
Jaw (masseter) Botox
Chewing may feel slightly weaker within a week, but visible slimming takes longer because the muscle has to shrink. Most people see changes at 4–8 weeks. See jaw Botox slimming timeline.
Skin Botox
Micro-droplet skin Botox for oil and pores often shows effects in about 1–2 weeks.
What can affect how fast Botox works?
- Muscle strength and size: stronger muscles may take longer to relax.
- Dose and product: different brands and doses behave slightly differently.
- Individual metabolism and previous treatment history.
If you see no change after two weeks, contact the clinic. A review appointment lets the doctor check whether a small top-up is appropriate.
Planning Botox around a trip or event
Because the full effect takes about two weeks, schedule Botox at least two weeks before an important event. For travelers, Botox early in your stay allows time for a review if needed. Read aftercare after Botox and filler and can I exercise after Botox? for the first 24 hours.
Is it normal to feel nothing at first?
Yes. For the first two or three days, most people feel and see no difference. Some notice a slight tightness or heaviness as the muscle starts to relax. Avoid judging the result or adding more product until the two-week mark.
At a glance
- First effects: Usually 3–5 days
- Full effect: About 2 weeks for wrinkle areas
- Jaw slimming: Commonly 4–8 weeks
- Lasts: Commonly 3–6 months
- Review: Around 2 weeks after treatment
Related questions
Can I speed up how fast Botox works?
There is no reliable way to make Botox work faster. Some clinics suggest gently using the treated muscles in the first hours, but evidence is limited. Following aftercare, such as avoiding rubbing the area, matters more for a good result than trying to speed it up.
Why does one side look different after Botox?
In the first week, the two sides can relax at slightly different rates, so mild asymmetry is common and often evens out by day 14. If a difference remains after two weeks, the doctor can assess whether a small adjustment is needed.
When should I get Botox before a wedding?
Plan Botox at least two to four weeks before the event. This allows the full effect to develop and leaves time for a touch-up if needed. Avoid trying a new area or product for the first time just days before an important date.
Before you book
This page is general information, not a diagnosis. Suitability, dose, number of sessions and expected results are decided by a doctor at consultation, and results vary by individual. Possible side effects include redness, swelling and bruising. Pricing is confirmed in writing before any treatment. See our medical disclaimer.
Still have a question?
A doctor at Re:berry Clinic Hongdae can answer it for your skin specifically. Multilingual consultation support is available.