My teeth were originally on the yellowish side, and as I got older they became even more yellow, so I was stressed and tried whitening. Even there, they said that if there are levels 1-10, for example if I’m at level 3, it would brighten to about 2? or maybe 1.5, but it wouldn’t become completely white like a celebrity’s teeth.
The result: no change at all lololololololololololol Unless you plan to live without drinking things like coffee or cola at all, I don’t know... I just wasted my money^^
If anyone is thinking of doing it, think carefully.........