By LIV Clinic · Medically reviewed by Dr. Narathai Vichienkalayarut, M.D. · Published October 16, 2026

Counterfeit product does not announce itself. The only reliable check happens before the needle, not after.

How can you tell if Botox is genuine in Thailand? Ask to see the sealed vial opened in front of you, confirm the product is registered with the Thai FDA, check the clinic displays a valid advertising licence number, and confirm a licensed doctor performs the injection. A price far below the market is the most common warning sign.

Why this matters more than it sounds

It is a sensitive protein, not a cosmetic

Botulinum toxin must be stored cold and diluted correctly. Counterfeit, over-diluted or poorly stored product produces a weak result at best, and an unpredictable one at worst — and none of that is visible to you in the chair.

You cannot tell afterwards

A treatment that does nothing could be a fake product, an under-dose, or a static line that was never going to respond. That ambiguity is exactly why the checks have to happen beforehand.

The vial check

Ask for it to be opened in front of you

A sealed, intact vial opened in your presence is the single most useful check available to a patient. It confirms the product was not pre-drawn, pre-diluted or reconstituted at an unknown time.

What to look at

The brand name, the batch number and an intact seal. A clinic confident in its supply chain has no reason to object to you looking.

Regulatory checks

Thai FDA registration

Cosmetic injectables used in Thailand should be registered with the Thai FDA. Ask which registered brand is being used — the answer should be immediate and specific, not vague.

The clinic licence

Licensed Thai clinics display an advertising licence number, usually on the premises and in their marketing. Its absence is a meaningful signal.

The checks, ranked by usefulness

None of these guarantees an outcome. They establish that the product and the setting are legitimate.

Warning signs

Reasons to walk away rather than negotiate:

• A price far below every other clinic you have asked
• Reluctance to say which brand is used
• Product already drawn into the syringe when you arrive
• Treatment offered in a hotel room, spa or private apartment
• No visible clinic licence number
• A non-medical injector, or no clear answer about who injects
• Pressure to decide immediately because of a promotion ending

Why brand matters to the price question

Not dosed one-for-one

Different registered botulinum toxin brands require different unit counts for the same effect. A low per-unit price can simply reflect a product that needs more units, which is legitimate — but it makes a per-unit comparison meaningless without the brand name.

Legitimate cheaper brands exist

A lower price is not automatically suspicious. The distinction is between a registered alternative brand and a product nobody will name.

Step-by-step: verifying before you are treated

Do this before any money changes hands:

1. Ask which brand is used and confirm it is registered with the Thai FDA.
2. Ask whether a licensed doctor performs the injection.
3. Ask for the sealed vial to be opened in front of you.
4. Check the clinic displays an advertising licence number.
5. Ask for the batch number to be recorded in your notes.
6. Compare the quoted price against two other clinics on a per-unit basis.
7. Walk away if any of these questions produces an evasive answer.

Product and licensing at LIV Clinic

Doctor-led, registered product

At LIV Clinic on Koh Samui and Koh Phangan, treatment is performed by Dr. Narathai using genuine registered product, and you are welcome to see the vial opened.

Read next

See our Botox and wrinkle programme, read about Botox brands available in Thailand, or book a consultation.

Frequently asked questions

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.