There : There are a number of different otc whitening kits you can buy at your pharmacy. They may not work as well or as quickly as a professionally applied gel, but they may get your teeth white enough to make you happy. The amount of time it will take depends on how dark or stained your teeth are. If they are very dark or stained, the otc gel may not be strong enough to do the trick.
Answered 10/3/2016
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Crest Whitening : Crest whitening strip are the cheapest way to get an effective whitening. It may take up to 2 weeks.
Answered 7/10/2015
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Crest Strips: The cheapest, quickest and most effective home whitening can be purchased in your local pharmacy. Crest whitening strips work and have good results.
Answered 9/1/2013
4.9k views
White strips: White strips are effective. How long it takes depends on how dark your teeth are and how white you want them to be. If your teeth are just a little yellow or yellow-brown they will work wearing them every day for about two weeks. If your teeth have a grey discoloration they probably won't work.
Answered 9/9/2013
4.9k views
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