Our Advanced Whitening Kit and products have been proven to remove stains from people of all ages. There are three causes of teeth discolouration which our products can be used on, the main one and easiest to remove are surface stains, these are typically caused by tobacco use or by regularly drinking coffee and tea, wine or other coloured beverages such as coca-cola. Stains can also work through the exterior of the tooth and accumulate within the tooth enamel. Excessive fluoride use has been associated with this type of staining, especially in children. This type of stain is trickier to remove, but it can certainly be done with our Advanced Teeth Whitening Kit. The third type of staining is age related, normally this is a combination of surface stains and staining of the enamel. This combination of staining can certainly be removed, although the results can vary depending on the thickness of the individual’s enamel. As we age the core tissue of your teeth, the dentin, naturally yellows over time. The enamel that covers the tooth becomes thinner due to abrasion, allowing the dentin to show through. The thinner the enamel is, the more stained the teeth appear. We recommend the use of our Advanced Teeth Whitening Kit and Whitening Toothpaste for best results.