The Smile Bar Bangkok - Teeth Whitening Bangkok
392, 27-28 Siam Square Soi 5, Pathum Wan, Bangkok 10330
Built for speed and visible results, The Smile Bar delivers up to nine shades of whitening in a 20-minute session using its own patented pH-neutral formula and calibrated UV-free LED technology. The three-tier package structure, from the 2,399 THB single session to the bestselling 60-minute triple, lets guests match intensity to their goals. Same-day teeth cleaning makes it an efficient one-stop visit, and a 4.9-star rating from nearly 4,000 Google reviews reflects a strong consistency record.
You settle into the chair at Siam Square Soi 5 and within minutes a trained technician has assessed your current tooth shade and prepared your teeth for treatment using the clinic's proprietary pH-neutral, aqua-based whitening gel. The Smile Bar has built its reputation across Asia on the promise of visible improvement in a single lunchtime visit.
The whitening process uses European-manufactured UV-free LED lamps calibrated to specific wavelengths, designed to maximize whitening action while keeping sensitivity low. The patented gel formulation is pH-neutral and aqua-based, a specification the clinic points to as the key factor behind its painless approach. Shades gained range from 2 to 9 depending on the starting condition and package chosen.
Three core packages are on offer. The Single Whitening runs for 20 minutes of direct treatment and is priced at 2,399 THB. The Double Whitening extends to 40 minutes at 4,399 THB. The Triple Whitening, the venue's bestselling option, delivers a full 60 minutes of direct whitening at 5,799 THB. Every package follows the same structured process: a briefing and explanation, initial shade assessment, oral examination, pre-whitening preparation, the direct whitening session, a final shade comparison, and a maintenance and care briefing. Each booking also includes a complimentary soft toothbrush.
The clinic additionally offers same-day teeth cleaning and scaling, meaning guests can combine whitening and a standard oral hygiene appointment in a single visit. The team is English-speaking and the Siam Square location is directly accessible from the BTS network.
The Smile Bar has served more than 100,000 clients and holds a 4.9-star Google rating from over 3,600 reviews, positioning it as a leading choice for affordable, professional teeth whitening in central Bangkok.