teeth whitening?!?

what is the best product...the better buy (price and works) for teeth whitening?!
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I use the Lysterine whitening It takes like 1-2 weeks to work but it works very good. The Lysterine bleaches them just like the dentist does but it not as effective but it is the most effective Ive seen that doesnt screw up your teeth. I wouldnt recommened whitening strips because it whitens them by tearing off your anamal. But the best way (if you have the money that is) let the dentist bleach them it taks 24 hours but it cost like 200 dollars but it works fast and Incredibly well.
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