Philips Zoom! teeth whitening treatments provided at Smiles by Natasha are formulated to give you long-lasting results, however the results may vary depending on the type of whitening you opt for. Lifestyle choices such as smoking or drinking drinks that stain teeth, will make them yellow again over time. However, the good news is that Philips Zoom! in-office whitening can be completed every six to twelve months to keep that smile looking whiter and brighter for longer. Philips Zoom! take-home whitening options can provide a good alternative to counteracting lifestyle choices after in-office bleaching. NiteWhite and DayWhite the Philips Zoom! at-home options can be completed from the comfort of your own home, ensuring that newly bright, white smile stays that way for years to come.