Teeth whitening: what products actually work?

There are a ton : Of over the counter products that claim to work. If economics is an issue, try crest whitestrips - they have been around a while and may offer some whiteness. Going to a dental office and having it professionally done almost always renders a better result, but is also more expensive. Hope this helps.

Hydrogen peroxide: All whitening products use hydrogen peroxide as its active ingredient. All work; just depends on if you are a tea/coffee/soda drinker. If none of these, i suggest 1 part 3% hydrogen peroxide/2 parts water twice daily after brushing. Safe & effective to use all the time. See results in about 4-6 weeks. Studies say time works better than concentration for a whiter smile.

Crest WhiteStrips: The crest whitestrips are made by a proven dental company with much research to support their product. Many products on the market are not as committed to research as is crest. These are safe and effective.

Professional whiteni: Professional teeth whitening systems - in office whitening and home trays under the dentist supervision.