It didn't work for me 😢
i have now used it 6x +1x the pen. i have not had very discoloured teeth, but unfortunately i don't see any real success so far although i have always followed the instructions 😢 when using it with the iphone it keeps going out 🤦♀️ i am a non-smoker, don't drink teas and only drink latte with lots of milk 1-2x a day 🤷♀️
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