If your daily coffee or tea habit has left your smile looking a little dull,...

https://wiki-velo.win/index.php/Why_Do_My_Teeth_Look_Dull_Even_After_Whitening_Gel%3F_A_Beauty_Editor%E2%80%99s_Honest_Take

If your daily coffee or tea habit has left your smile looking a little dull, at-home whitening gels can help. After years of testing, I’ve found that results are always gradual and rely entirely on your consistency