If you are looking for a professional strength whitening system, then Crest Professional Effects and Crest 3D White strips stand alone. These powerful strips came from the White Smiles, and provide you with lasting results without the dental price. Crest Professional Effects uses a special adhesive, which creates a bond between the strips and teeth that allows for maximum whitening of deep-set stains made by years of coffee, tobacco and wine. The strips are flexible and conform to the surface of your teeth, allowing them to operate without any displacement for the duration of the usage. After 30 minutes daily, you can achieve dental-level results in less than a month. Full results show in 20 days and you will not have to wait more than three days to see the difference. This whitening experience is great for those who want long-lasting results without sensitivity or pain. It is enamel safe and has the Canadian dental association seal of approval. Of all the whitening systems trusted, Crest Professional Effects is one of the most reliable on the market. Start your path to a whiter, brighter smile with Crest Professional Effects and see the transformation for yourself in less than 30 days!