The idea is to provide the customer with less messy, more convenient, least expensive but still provide effective whitening results compared to other teeth whitening home systems. Teeth whitening strips are very flexible, very easy to use thin strips of plastic coated with bleaching agents that stick to the teeth. Conversely, higher concentration gives faster results if comfort is not an issue. Follow instructions and indications. Do not leave teeth whitening products whether gels and rinses, longer in the mouth than prescribed. Extending the time off gels or rinses in the mouth will not improve the affectivity of the products. Depending also on your condition, the concentration of carbamide peroxide in your bleaching tray could be lowered by your dentist to insure comfort as the teeth is being bleached. There are many cases where the staining is deep and for the meantime intractable. No amount of bleaching will be effective unless other procedures are conducted first. Speaking of bleaching, this is what you need if you have yellow teeth. If you have brown or gray teeth, then bleaching will not be as effective as you will expect. When shopping for this product, do keep in mind that the crowns, the fillings and the veneers will not be affected by the whitening action of the paste. Over-the-Counter Solutions For Teeth Whitening Discovered For many, teeth whitening procedures include a trip to the dental office. This is partly true. But everyone should be reminded that there is more to the procedures that are performed in the dental office. There are other options as well available for many that can be performed and maintained in the comforts of the home. On the other hand, no amount of teeth bleaching will whiten teeth more than its natural color. In some cases, it could artificially be done but never recommended. No matter how teeth whitening and bleaching is done, anything involving cosmetic enhancements and restoration is subjective that varies from person to person.