i have used crest white stips before and they worked pretty well without any sensitvity. I also once had my teeth whitened professionally and had a allergic reaction that was pretty bad. i dont want that happening again and be worse. But seeing different articles i see there is also gosmile..which is supposed to be really good. Anyone have comments comparing the two? or has used gosmile before?
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Please be careful. I whitened so much i lost enamel and had extreme sensitivity.
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