Aged teeth sometimes whiten very quickly as seen in the first image.

Aged teeth very yellow - 11 shades whiter in 12 minutes!

This Tetracycline patient had an other type of whitening prior to using Brite White. Notice her teeth still looked discolored. She complained with being very sensitive from the other treatment to both teeth and gingival up to two weeks after. She had one 15 minute treatment with Brite White. Her teeth are noticeably much whiter and with no sensitivity.