How long does Botox last? If you are booking your first Botox appointment, or wondering why your last one seemed to wear off early, the honest answer is that results are temporary and vary from person to person. For most people, the smoothing effect on frown lines, forehead lines and crow’s feet lasts about three to four months.
Here is how Botox works, the realistic timeline from injection to wearing off, what changes how long it lasts, and what to expect if you decide to stop.
What Is Botox?
Botox is a brand name for onabotulinumtoxinA, a purified form of botulinum toxin. Injected in tiny doses, it blocks the nerve signals that tell a muscle to contract. The muscle relaxes, so the skin over it creases less.
That is why Botox works best on dynamic wrinkles, the lines that appear when you frown, raise your eyebrows or squint. It does much less for fine lines caused by sun damage or for deep folds that are there even when your face is at rest. Those respond better to sun protection, retinoids and fillers.
Other brands work the same way, including Dysport (abobotulinumtoxinA), Xeomin (incobotulinumtoxinA), Jeuveau (prabotulinumtoxinA) and Daxxify (daxibotulinumtoxinA). Doses are not interchangeable between brands, so units of one do not equal units of another.
How Long Does Botox Last?
According to the American Academy of Dermatology, results from botulinum toxin injections typically last 3 to 4 months, and in some people up to 6 months. The effect is temporary because the nerve endings gradually grow new connections to the muscle, and normal movement returns.
The Botox timeline
| Time after injection | What you will usually notice |
|---|---|
| First few hours | Small bumps at the injection points that settle within an hour or so. Possible redness or a tiny bruise. |
| Days 2 to 5 | Movement starts to soften. Lines look less deep when you frown or raise your brows. |
| Days 10 to 14 | Full effect. This is when your injector can judge whether a top-up is needed. |
| Months 2 to 3 | Some movement gradually returns, often first in the crow’s feet. |
| Months 3 to 4 | Most people are back to near their usual expression and lines. |
Daxxify is the main exception: in clinical trials its effect on frown lines lasted longer than other brands for many people, often around six months, though it also tends to cost more per treatment.
What Affects How Long It Lasts
- Dose. Too few units may soften lines for only a few weeks. Too many can make the area look frozen. A good injector aims for the dose that matches your muscle strength.
- Area treated. Small, frequently used muscles around the eyes often wear off sooner than the strong frown muscles between the brows.
- Muscle strength. People with strong, active facial muscles, which is common in men, often need more units for the same result.
- Product. Botox, Dysport, Xeomin and Jeuveau last a broadly similar time. Daxxify tends to last longer.
- Individual response. Some people simply break the toxin’s effect down faster. Very rarely, the body makes antibodies that reduce the response over time.
You may see claims that exercise, a fast metabolism or zinc supplements change how long Botox lasts. The evidence for these is weak, and you should not take supplements on the strength of them.
How to Make Your Results Last Longer
You cannot stop the toxin from wearing off, but you can protect the skin so lines come back more slowly and look softer when they do:
- Wear sunscreen every day. Sun damage is the main driver of skin ageing. Our guide to anti-aging basics explains why sunscreen beats expensive creams.
- Use a retinoid. Retinoids help with fine lines that Botox cannot reach. Start slowly with our retinol for beginners guide.
- Do not smoke. Smoking breaks down collagen and deepens lines around the mouth and eyes.
- Keep regular appointments. Many people find that with repeat treatments, lines look softer between sessions.
How Often Should You Get Botox?
Most people book treatment every 3 to 4 months, when movement starts to return. Many injectors advise waiting at least 3 months between sessions for the same area, as more frequent treatments may raise the small chance of developing antibodies.
How many units are typical?
The doses studied for Botox Cosmetic are around 20 units for frown lines between the brows, 20 units for forehead lines and 24 units for crow’s feet on both sides. Your dose may be lower or higher depending on your muscles and the look you want. Forehead lines are usually treated together with the frown lines to avoid the brows dropping.
What does it cost?
Prices vary a lot by city and clinic. In the US, Botox is often priced per unit, commonly somewhere around 10 to 20 dollars per unit, so a single area can cost a few hundred dollars. Cosmetic Botox is not covered by insurance. Be wary of prices far below the local average, which can mean diluted or unlicensed product.
Side Effects and Safety
In trained hands, cosmetic Botox has a good safety record. Common side effects are mild and short-lived:
- Bruising or tenderness at the injection sites. Our tips on how to get rid of a bruise fast can help.
- Headache for a day or two
- A heavy or droopy eyelid or brow, which wears off as the toxin does, usually within weeks
- An uneven or surprised look that a top-up can often fix
Botox is not recommended during pregnancy or breastfeeding, or for people with neuromuscular conditions such as myasthenia gravis. Always choose a licensed doctor, dermatologist or nurse injector who can show you the product box.
What Happens If You Stop Getting Botox?
Your muscles gradually return to how they worked before treatment. A common worry is that your face will sag or wrinkles will rebound worse than before. That does not happen. Lines will reappear as movement returns, and over time they will reflect your normal ageing. Some people find their lines look slightly softer than they would have, because the muscles were rested for a while.
FAQ
How long does it take for Botox to work?
You will usually see a change within 2 to 5 days, with the full result at around 2 weeks.
Why did my Botox wear off after 6 weeks?
The dose may have been too low for your muscles, or the area treated may be one that wears off faster. Talk to your injector before your next session rather than booking early top-ups.
Does Botox last longer the more you get it?
Some people find results last a little longer with regular treatments, but this is not guaranteed. It is not a reason to have injections more often than every 3 months.
Is Dysport longer lasting than Botox?
Not in a meaningful way. Both typically last 3 to 4 months. Dysport may start working a day or two sooner for some people.
What are the alternatives to Botox?
Daily sunscreen and a retinoid for fine lines, dermal fillers for deeper folds, and laser or other resurfacing treatments for texture. None replace Botox exactly, as they work in different ways.
The Bottom Line
Botox usually lasts 3 to 4 months, starts working in a few days and peaks at about two weeks. How long yours lasts depends mostly on the dose, the area and your own muscles. Daily sunscreen, a retinoid and not smoking help your skin look better between sessions, and stopping treatment simply lets your face return to its natural movement.
This article is for general information and is not a substitute for advice from your dermatologist or doctor.
Sources
- American Academy of Dermatology: Botulinum Toxin Therapy Overview
- American Society of Plastic Surgeons: Botulinum Toxin
- MedlinePlus: Botox
Medical disclaimer: This article is for general information only and is not a substitute for advice, diagnosis or treatment from a qualified health professional. If your symptoms are severe, sudden or getting worse, contact a doctor or emergency services.
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