“What is the purpose of the 3 white tubes of whitener, if it is the gold tube that is supposed to work best? Which tubes are supposed to be used first?”

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• The gold pen is the more concentrated one and the others are for in between use

  Answered by JenniferGilbert314 2 years ago

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• The 3 white tubes are to be used between and after the whitening process, to keep your teeth white,

  Answered by user741150 2 years ago

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