Teeth whitening results can stick around for anywhere between 6 months to 2 years, but it really depends on a few things like how well you take care of your teeth, what you eat, and your overall lifestyle. Things like coffee, tea, red wine, and cola, along with smoking, can lead to those pesky stains creeping back over time. To keep your smile shining bright, regular professional t... https://www.smileagain.in/teeth-whitening/