Is it sufficient to receive teeth whitening just once? Typically, if I avoid alcohol, cigarettes, and coffee, how many sessions would I need?

Hello, this is Rien Dental Clinic, accompanying your bright smile at every moment. ^^ The number of treatments may vary depending on the tooth color. Typically, one to three sessions are conducted in a day, and it is recommended to start treatment after a more accurate diagnosis. If you apply for a consultation via CashDoc, we will assist you with a prompt consultation at the hospital. Please apply at the bottom of the hospital event detail page! Thank you. ^^

I need orthodontic treatment.

Hello. ^^ This is New En Dental Clinic. ^^ New En Dental Clinic, renowned for teeth whitening, also offers orthodontic treatments. ^^ Please leave your name and contact information, and we will assist you promptly. If you request a consultation through CashDoc, our hospital will provide you with quick assistance. Please apply at the bottom of the hospital event detail page! Thank you. ^^

Yes, during teeth whitening, how long is the light applied?

Hello~ ^^ Dear Customer, the tooth whitening light treatment lasts for 15 minutes per session.

How long does the light treatment during whitening therapy last?

Hello :) The light treatment is conducted in three sessions, each lasting 15 minutes. The One-Day Teeth Whitening requires a minimum of 1 to 1.5 hours from preparation to completion. If you apply for a consultation through CashDoc, our hospital will assist you promptly. Please apply at the bottom of the hospital event detail page! Wishing you a great day today!

Hello, is the cost for one session of teeth whitening?

Hello~ ^^ Dear Customer, this is the cost for three sessions of tooth whitening.

Teeth Whitening effects, reviews, and prices (2026)

BEFORE & AFTER

Teeth Whitening Before & After

Cases with verified shooting conditions and procedure details are shown first.

Before
After
Rating 5.0 out of 5
2023.05.14
Myeongdong Dental Clinic30-Minute Complete Teeth Whitening Program
Because I had orthodontic treatment and drank a lot of coffee, my teeth had become yellow, so I wanted to get teeth whitening. While looking into where to have it done, I found it through Eodiseo, and the reviews were good, so I requested a consultation, made an appointment, and visited. I had three treatments and am very satisfied. I had the first and second sessions done at once on the first day, and the third session a week later. I’m also glad that I didn’t experience any sensitivity.
Before
After
Rating 5.0 out of 5
2023.02.26
Myeongdong Dental Clinic30-Minute Complete Teeth Whitening Program
They were very kind. Before getting the treatment, I wasn’t sure if it would really work, but I had three sessions in total. I had the second session about two and a half weeks after the first, and it really was effective. The sensitivity may vary from person to person, but mine only lasted for a short while. I’m satisfied!! The photos were taken before the second session and after the third session.
Before
After
Rating 5.0 out of 5
2023.12.3018
Orun Dental ClinicTeeth Whitening in 30 Minutes
I had one session, and it has brightened a bit. I've been busy with work and couldn't have the second treatment, but I'm planning to schedule it again in the new year ^^

Photos may look different depending on shooting conditions, and results vary from person to person even with the same procedure. The text shown with a photo is an excerpt from that review; the full text is in the review section.

476 verified reviews

Rating 5.0 out of 5
UnverifiedSunlight Dental Clinic
I came for a consultation about teeth whitening. The explanations were very good, so I trust them.
2025.10.16
Rating 5.0 out of 5
UnverifiedSeoul The Faith Dental Clinic
I came for teeth whitening treatment through a friend's introduction, and the facilities are nice, plus the equipment is new.
2024.02.20
Rating 5.0 out of 5
UnverifiedApple Tree Dental Clinic
I just had a consultation for teeth whitening. They were really kind and explained everything in detail.
2025.10.19
Rating 5.0 out of 5
Unverified365 Seoul Chaeum Dental Clinic, Bupyeong
The price for 3 sessions of teeth whitening is really affordable. With this price, there's no reason not to do it since your teeth will get whiter. Find your confidence with white teeth!
2025.10.10
Rating 5.0 out of 5
UnverifiedGyeysan Seoul Dental Clinic
I had a consultation for teeth whitening, and it turns out it's not as expensive as I thought.. They say the results are good, so I need to decide soon.
2025.06.161
Rating 5.0 out of 5
UnverifiedLee Cheol-hwan Dental Clinic
I visited for teeth whitening. The doctor was really skilled and explained the whitening process and results clearly. The staff were friendly, and the facility was clean as well.
2024.03.181
Rating 5.0 out of 5
UnverifiedKim Hyun Dental Clinic
I had a consultation for teeth whitening, and it wasn't as overwhelming as I thought. They said the results are good, so I should make a decision soon.
2025.04.241
Rating 5.0 out of 5
UnverifiedCenter Dental Clinic
I had teeth whitening treatment. The doctor was very kind and took good care of me. I'm satisfied.
2024.09.16
Rating 5.0 out of 5
UnverifiedSamsung Hyun Dental Clinic
I had a consultation about teeth whitening. They explained the costs and everything else really well.
2024.03.16
Rating 5.0 out of 5
UnverifiedSeoul Center Dental Clinic
I brought my son in for teeth whitening treatment. The doctor scolded him for not brushing well enough.
2025.12.14
Rating 5.0 out of 5
UnverifiedEl Dental Clinic
I had a consultation for teeth whitening, and it turns out the cost isn't as burdensome as I thought... They say the results are good, so I think I need to decide soon.
2025.06.271
Rating 5.0 out of 5
UnverifiedSinchang Yonsei Dental Clinic
I went for a consultation on teeth whitening and ended up getting a cleaning. Thank you for doing such a great job; I feel so refreshed!
2024.05.181
Rating 5.0 out of 5
UnverifiedSanga Dental Clinic
I had a consultation for teeth whitening, and the cost isn't as daunting as I thought.. They say the results are good, so I need to decide soon.
2025.07.021
Rating 5.0 out of 5
UnverifiedHanmi Dental Clinic
I had a consultation about teeth whitening. They explained everything to me kindly and thoroughly.
2024.03.16
Rating 5.0 out of 5
UnverifiedMir Dental Hospital
I went there to inquire about teeth whitening. The inside was clean, which was nice, and everyone was friendly.
2023.12.08
Rating 5.0 out of 5
UnverifiedHa-eun Dental Clinic
I had a consultation about teeth whitening. They explained everything carefully and in an easy-to-understand way.
2025.11.09
Rating 5.0 out of 5
UnverifiedPyeongtaek Bonplant Dental Clinic
I received the white teeth whitening treatment and I'm really happy with my teeth being bright white. I recommend it!
2024.05.14
Rating 5.0 out of 5
Unverified365 Seoul Dental Clinic
I went for teeth whitening, but they did a scaling first, so it felt refreshing.
2024.07.10
Rating 5.0 out of 5
UnverifiedGwanghwamun Faith Dental Clinic
My teeth have been getting yellow, so I came in for a whitening consultation. Thank you for the kind explanation
2024.03.03
Rating 5.0 out of 5
UnverifiedWell Dental Clinic
After getting teeth whitening treatment, my yellow teeth turned bright white, and I gained confidence in my social interactions.
2026.01.30

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Ongoing Procedures

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5 frequently asked questions

Is it sufficient to receive teeth whitening just once? Typically, if I avoid alcohol, cigarettes, and coffee, how many sessions would I need?
Hello, this is Rien Dental Clinic, accompanying your bright smile at every moment. ^^ The number of treatments may vary depending on the tooth color. Typically, one to three sessions are conducted in a day, and it is recommended to start treatment after a more accurate diagnosis. If you apply for a consultation via CashDoc, we will assist you with a prompt consultation at the hospital. Please apply at the bottom of the hospital event detail page! Thank you. ^^
Transform Yellow Teeth into Shining White Teeth · Lien Dental Clinic · 2025-02-27
I need orthodontic treatment.
Hello. ^^ This is New En Dental Clinic. ^^ New En Dental Clinic, renowned for teeth whitening, also offers orthodontic treatments. ^^ Please leave your name and contact information, and we will assist you promptly. If you request a consultation through CashDoc, our hospital will provide you with quick assistance. Please apply at the bottom of the hospital event detail page! Thank you. ^^
Bright White Smile, Whitening Specialist New En Dental! · Newen Dental Clinic · 2025-02-03
Yes, during teeth whitening, how long is the light applied?
Hello~ ^^ Dear Customer, the tooth whitening light treatment lasts for 15 minutes per session.
Transform Yellow Teeth into Shining White Teeth · Lien Dental Clinic · 2024-10-21
How long does the light treatment during whitening therapy last?
Hello :) The light treatment is conducted in three sessions, each lasting 15 minutes. The One-Day Teeth Whitening requires a minimum of 1 to 1.5 hours from preparation to completion. If you apply for a consultation through CashDoc, our hospital will assist you promptly. Please apply at the bottom of the hospital event detail page! Wishing you a great day today!
Confidently Smile One-Day Teeth Whitening - 3 Sessions · Good Sense Dental Clinic · 2024-10-17
Hello, is the cost for one session of teeth whitening?
Hello~ ^^ Dear Customer, this is the cost for three sessions of tooth whitening.
Transform Yellow Teeth into Shining White Teeth · Lien Dental Clinic · 2024-10-17

Teeth Whitening effects, reviews, and prices

Teeth Whitening Before & After

476 verified reviews

Ongoing Procedures

5 frequently asked questions

Related Treatments