Zoom Teeth Whitening in Bangkok, Thailand: Prices, How It Works and How It Compares with LED

Zoom teeth whitening costs 7,500 to 12,000 THB in Bangkok dental clinics. It’s a Philips system: a whitening gel is applied to your teeth and activated with an LED lamp, in one visit of about an hour.

The Smile Bar doesn’t offer Zoom. We do teeth whitening in Bangkok with our own LED system, from 2,399 THB. This guide explains Zoom, lists what Bangkok clinics charge for it, and compares it with LED whitening so you can pick what fits your trip.

In short

• Zoom is done in dental clinics and hospitals. Published prices in Bangkok: 7,500 to 12,000 THB.
• Zoom already uses an LED lamp. “Zoom vs LED” is really dental clinic vs whitening studio.
• LED whitening at The Smile Bar costs 2,399, 4,399 or 5,799 THB, in 20-minute sessions.
• Both can cause temporary sensitivity, and neither changes the colour of crowns, veneers or fillings.

Zoom vs LED whitening at a glance

The two “result” lines are what each provider announces. They aren’t measured the same way, so don’t read one as better than the other.

An LED whitening session at The Smile Bar, Bangkok.

What is Zoom teeth whitening?

Zoom is a brand of in-clinic whitening made by Philips. The current version is called Zoom WhiteSpeed.

• It’s a clinic treatment. Philips supplies it to dental professionals.
• It has two parts: a whitening gel and a lamp that shines on the gel.
• It’s done in one visit. Philips describes 45 minutes of whitening.

Zoom already uses an LED lamp

This is the point most guides skip. The Zoom lamp is a UV-free LED lamp. It isn’t a laser, and it isn’t a different kind of light from other LED systems.

So when people compare “Zoom vs LED”, they’re really comparing two settings: a dental clinic with a Philips kit, or a whitening studio with another gel and lamp.

How much does Zoom teeth whitening cost in Bangkok?

There’s no fixed price. Each clinic sets its own, and most run promotions. These are the prices clinics published on their own websites when we checked on 9 October 2026:

How to read it: promotions sit between 7,500 and 9,500 THB, and the usual list price is 12,000 THB. Prices change, so confirm with the clinic before you book.

What the price may or may not include

• The check-up. Some clinics include it, others bill it.
• A cleaning. Usually extra. Several clinics sell a Zoom + cleaning package.
• The number of cycles. Three is standard. Some clinics do two, others four.
• A take-home kit. Not always included.
• Any treatment needed first. Fillings or gum care are charged on top.

How that compares with prices back home

In the United States, guides put Zoom at around 300 to 600 US dollars, with an average near 500. Bangkok prices are roughly half of that.

What happens during a Zoom session

1. Check-up. A dentist checks your teeth and gums.
2. Protection. Your lips and gums are covered so only the teeth are exposed.
3. Gel and light. The gel is applied and the lamp runs for about 15 minutes.
4. Repeat. The gel is replaced and the cycle is repeated, usually three times in total.
5. Shade check. Your new shade is compared with the starting one.

The Smile Bar studio in Siam Square.

How LED whitening at The Smile Bar works

1. Briefing and shade check. We explain the session, look at your teeth and record your starting shade.
2. Pre-whitening. You rinse with a mouthwash and brush with a whitening toothpaste.
3. Whitening. The gel is applied and the LED lamp runs for 20 minutes.
4. Repeat if you chose two or three sessions.
5. Final shade check and aftercare advice. You leave with a whitening toothpaste and mouthwash.

You can book any package and upgrade on the day. Full details are on our teeth whitening prices page, and our guide to cool light (LED) teeth whitening explains the technology.

Zoom or LED: which one fits your trip?

Zoom in a dental clinic may suit you if:

• you’re already having other dental work done in the same clinic;
• you want a full dental check-up and whitening in one appointment;
• your discolouration comes from inside the tooth (medication, an old injury) and you want a dental opinion first.

LED whitening at The Smile Bar may suit you if:

• your stains come mostly from coffee, tea, wine or smoking;
• you want a fixed price, the same every day;
• you’re short on time: a Single Whitening visit takes about 30 minutes;
• you want to start with one session and decide on the day whether to add more.

Before and after an LED whitening session at The Smile Bar.

Results: what to expect from each

• Zoom: Philips announces up to 8 shades in one visit. That’s a maximum, not what everyone gets.
• The Smile Bar: 2 to 9 shades lighter, 5 on average. See our before and after results.
• Both: the result depends on your starting shade and the type of stains. Surface stains respond best.
• How long it lasts: clinics announce anything from a few months to three years for Zoom. It mostly depends on what you eat, drink and smoke afterwards.

A note on the lamp: studies of in-clinic whitening have not shown that light makes whitening more effective. The gel does the work. That’s true for Zoom and for LED systems alike.

Sensitivity and aftercare

• Sensitivity is possible with any whitening. It’s usually mild and temporary. Clinics that offer Zoom say it settles within 24 to 48 hours.
• Zoom clinics can adjust. The lamp has a lower intensity setting, and a desensitising gel can be applied.
• Our gel is low-concentration and pH-neutral, designed to limit sensitivity. Some people still feel their teeth for a day or two.
• Food and drink: Zoom clinics ask you to avoid coffee, tea, red wine and tobacco for 48 hours. Our rule is 72 hours, or none with the Nano Protection add-on (750 THB).

For more, read does teeth whitening hurt?, what to eat after teeth whitening and Is teeth whitening safe?

When to see a dentist first

• You have tooth pain, a cavity or bleeding gums.
• You have crowns, veneers or fillings on your front teeth: they won’t change colour.
• A single tooth is much darker than the others.

We don’t whiten teeth for women who are pregnant or breastfeeding, people who wear braces, or anyone under 18.

Questions to ask a clinic before booking Zoom

• Which Zoom system do you use, and how many cycles are included?
• Is the check-up included? Is a cleaning included? (We offer teeth cleaning with whitening for 950 THB.)
• Is this a promotional price, and until when?
• Is a new kit opened for each patient?
• What do you do if I feel sensitivity during the session?

Book an LED whitening session in Siam Square

• Where: ground floor, 392/27-28 Siam Square Soi 5, next to BTS Siam
• When: every day, 10 am to 8 pm
• How: book online, or walk in

Comparing with laser too? See laser, LED and Zoom whitening compared.

Frequently asked questions

Does The Smile Bar offer Zoom whitening?

No. The Smile Bar doesn’t use Zoom or laser. We whiten teeth with a UV-free LED lamp and a low-concentration, pH-neutral gel from Sweden, in 20-minute sessions.

Is Zoom the same as LED whitening?

Zoom is one brand of LED whitening, used in dental clinics. Other LED systems, like ours, use a different gel and lamp.

How much is Zoom whitening in Bangkok?

On 9 October 2026, Bangkok clinics published prices from 7,500 to 12,000 THB. Promotions sit between 7,500 and 9,500 THB and the usual list price is 12,000 THB.

Is Zoom whitening the same as laser whitening?

No. Zoom uses an LED lamp, not a laser.

How long does a Zoom session take?

The whitening takes about 45 minutes, usually in three 15-minute cycles. With the check-up and preparation, plan about an hour.

Will crowns, veneers or fillings whiten?

No. Whitening only works on natural teeth, whichever system you choose.

Can I whiten my teeth on a short trip to Bangkok?

Yes. A Single Whitening at The Smile Bar takes about 30 minutes and walk-ins are welcome when a chair is free. See how to whiten teeth fast if you have an event coming up. Our guide to teeth whitening in Thailand explains how to plan it.