The cookies that are categorized as "Necessary" are stored on your browser as they are essential for enabling the basic functionalities of the site. NiteWhite ACP Whitening gel is the leading whitening gel that combines patented Calcium Phosphate technology with the proven effectiveness of Potassium Nitrate. This naturally fills microscopic defects in the tooth’s surface, smooths the enamel and increase surface gloss. Creating a... With no impressions or custom trays necessary, Opalescence Go is ready to use right out of the package! While whitening your teeth at home, pay attention to how you feel, especially if you’re trying something new. If at any point you notice sensitivity on your teeth or gums while using at-home whitening products, stop using the whitening product immediately and contact your dentist.