anyone done teeth whitening at the skin clinics?

Hey there, I'm considering of doin a teeth whitening at my local skin clinic. Given that it is very expensive, £500, I want to find out more about it first. So did you guys do it? do you know someone who did it? do you have any suggestions as to where I should do my teeh whitening?
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i suggest u try this before spending that sort of cash will do a good job for a lot less cash. good luck
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