The two-week mark is not an afterthought — for a first treatment it is the appointment that actually finishes the job.
When should I get a Botox touch up after my first treatment? At about two weeks. The effect builds over 10 to 14 days, so that is the earliest point at which the true result can be judged and a few extra units added safely. Touching up sooner risks over-treating something that was still developing; leaving it much later usually means waiting for the next full cycle.
Why two weeks is the number
The effect builds, it does not switch on
The Cleveland Clinic notes that most people see results around the third or fourth day, with full results within 10 to 14 days. Anything you judge before that is a partial picture.
The honest reason clinics review
A conservative first dose plus a two-week check is the safest route to a natural result. It lets the injector add rather than guess, which matters because there is no way to subtract.
What a touch up can and cannot fix
What it fixes well
Under-dosing, a line that softened less than its neighbour, and small asymmetries between the two sides are all straightforward to correct with a few extra units.
What it cannot fix
An over-treated area. Botulinum toxin cannot be dissolved or reversed, so a heavy brow or a frozen forehead is a waiting game. In some cases a careful adjustment elsewhere can rebalance the look, but that is management, not reversal.
Timeline after a first treatment
| Time since treatment | What is happening | Touch up? |
|---|---|---|
| Day 1–2 | Pinpoint marks settling; no effect yet | No |
| Day 3–4 | First softening becomes noticeable | No |
| Day 7 | Most of the effect present, still developing | Not yet |
| Day 10–14 | Full effect — the true result | Yes, the review window |
| Week 3–4 | Result stable | Possible, but late |
| Month 3–4 | Effect fading | Book a full treatment instead |
Typical pattern only; onset and duration vary with dose, area and individual metabolism.
Signs you genuinely need a top up
Worth raising at your review if, at day 14:
- One side moves noticeably more than the other
- A line you specifically wanted softened is unchanged
- The frown muscles still pull strongly when you concentrate
- Your brow sits unevenly
- The result is so subtle you cannot tell treatment happened
- One area responded well while an adjacent one did not
When a touch up is the wrong answer
You asked for subtle
If you requested a natural result, a soft outcome is the treatment working as instructed. Adding units changes the brief rather than fixing a fault.
The line is static
A crease visible with your face fully relaxed has set into the skin. More units will not lift it — that needs a resurfacing or collagen-stimulating approach.
Does a touch up cost extra?
It depends on the clinic
Some clinics include a small review top-up within the first two to four weeks of a first treatment; others charge per unit from the outset. Ask before you book, not after.
What to confirm
Ask how many units were used, whether a review is included, and how long the inclusion window runs. Those three answers remove almost all the ambiguity.
Step-by-step: handling your first treatment and review
The sequence that produces the most reliable first result:
- Agree a conservative starting dose at your first consultation.
- Ask whether a two-week review is included and book it on the spot.
- Photograph your face at rest and in full expression on day 1.
- Avoid judging the result before day 10.
- Re-photograph at day 14 in the same light and compare.
- Bring both sets of photographs to the review.
- Add only what the review identifies — resist topping up everything at once.
First treatments and reviews at LIV Clinic
Review built in
At LIV Clinic on Koh Samui and Koh Phangan, Dr. Narathai starts conservatively on a first treatment and reviews at about two weeks, rather than aiming for the final result on day one.
Read next
See our Botox and wrinkle programme, read about keeping forehead Botox natural, or book a consultation.
Frequently asked questions
When should I get a Botox touch up after my first treatment?
At about two weeks. The effect builds over 10 to 14 days, so that is the first point at which the true result can be judged and extra units added safely.
Can I get a touch up after one week?
Better not to. At day seven the effect is still developing, so topping up then risks over-treating an area that would have settled correctly on its own.
Is a Botox touch up free?
It varies by clinic. Some include a small review top-up within the first two to four weeks of a first treatment; others charge per unit. Ask before booking rather than after.
What if my Botox is too strong rather than too weak?
A touch up cannot help, because botulinum toxin cannot be reversed. Occasionally a careful adjustment elsewhere rebalances the look, but mostly it is a matter of waiting for it to wear off.
How many extra units does a touch up usually need?
Usually only a few, since it is correcting a shortfall rather than starting again. Your doctor confirms the amount based on what the two-week review shows.
Will a touch up make my Botox last longer?
Not meaningfully. It brings the result up to where it should be, but the whole treatment still fades on its normal three to four month cycle.
Safety and consultation
Botox is a prescription medical treatment and, like any injectable, carries some risk — common temporary effects can include redness, swelling, bruising, mild headache or a short-lived heaviness, and less common reactions such as temporary eyelid or brow droop are possible. Results vary from person to person, and no specific outcome can be promised. This article is general information, not medical advice.
At LIV Clinic, every treatment begins with an in-person assessment by Dr. Narathai Vichienkalayarut, M.D., who reviews your skin, medical history and goals before recommending a personalized plan. Book a consultation to find out whether this treatment suits you.
LIV Clinic — “Live Your Life Young”
Doctor-led aesthetic and wellness clinic on Koh Samui and Koh Phangan, serving both international visitors and local residents.
Koh Samui (Bophut): 1/63 Thaweeratpakdee Rd, Bo Put, Koh Samui, Surat Thani 84320 · Tel 065-996-4242
Koh Phangan: 116/16 Moo 1, Koh Phangan, Surat Thani 84280 · Tel 093-254-5259
LINE: @Livclinic · Book a consultation
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