A: Hello Natalia, the Crest 3D Whitestrips Sensitive White Teeth Whitening Kit with Hydrogen Peroxide comes with 13 treatments per box. For all your future beauty questions, get real-time answers using the “Chat with a Virtual Beauty Consultant” button, found on every product page! :)

A: This listing would come with 13 treatments, which would come to 26 Whitestrips total.

A: The Target website for this item states that there are 14 treatments in the box. https://www.target.com/p/crest-3d-whitestrips-sensitive-white-at-home-teeth-whitening-kit-14-treatments/-/A-79659466

A: Hey KJ, No, Simply apply for 30 minutes a day for 13 days. This pack includes 26 teeth whitening strips, 13 for your top teeth and 13 for your bottom teeth, to be used over the course of 13 days. For real-time answers to all your beauty questions, use the “Chat with a Virtual Beauty Consultant” button on any beauty product page.

A: Thanks for asking. We do not recommend that you use more than 1 pair of strips per day.

A: I don't avoid coffee, but I do rinse my mouth with water really well right after finishing a cup.

A: While you shouldn't eat or drink (with the exception of water) while using our Crest Whitestrips, there's no particular foods or beverages that you have to avoid during the treatment period. It may be helpful to know that research shows our Whitestrips are effective for people who have stains from coffee, tea, dark sodas, red wine and even a few fruits and vegetables which are proven causes of discolored teeth. If you continue to use staining substances such as these, your teeth may discolor again.

A: Yes, you can. It might be more difficult though.

A: At this time, our 3D Whitestrips are designed to be used only 1 at a time, and they're manufactured to only cover the teeth that show the most.

A: No, our Whitestrips are not designed for veneers. Please use only on natural teeth.

A: Thank you for taking the time to ask your question, Ann. We recommend using two kits per year. You can maintain your whitest smile by using a kit every 6 months. You can also use any of our whitening toothpastes, such as our Crest 3D White Professional Enamel Protect, which helps remove and prevent surface stains.

A: Yes, it's perfectly fine to use your retainers after using the Whitestrips.

A: While all our products are tested to be safe when used as directed, we recommend checking with your doctor before use.

A: The percentage is proprietary information, but you will notice great whitening results when using our Whitestrips as directed.