- Many of the whitening strips Crest offers, including the Classic, Premium, Pro Effects and Advanced Seal products, allow users to see initial results within three days.
- One of the effects of Crest Whitestrips is that the product can remove many types of dental staining. Even dark stains from sodas and coffee can be significantly reduced.
- Protection from tartar buildup is one of the positive effects provided by Crest when people use the Daily Whitening + Tartar Protection formula.
- Some users may experience the side effect of tooth sensitivity when using Crest Whitestrips to whiten their teeth. Sensitivity usually goes away after you have finished using the product.
- Gum irritation is another temporary side effect associated with Crest whitening strips as well as other tooth whitening systems.













