Does it work?
That depends on what your expectations are. What tooth whitening isn’t going to do is completely change the colour of your teeth, but will simply make them a lighter shade. The benefits of tooth whitening could last up to three years, however, this will vary from person-to-person. The effect is less likely to last as long if you smoke, or eat or drink products that can stain your teeth. Due to its effectiveness, short treatment time and cost, tooth whitening has proven to be an increasingly popular way for people to give their smile a makeover and is far less invasive or expensive as more heavy cosmetic work like veneers.