I'm curious about teeth whitening.

My teeth are not very white, so I wish they were whiter. Has anyone ever had teeth whitening?

I think teeth whitening won't be done just once. Isn't teeth whitening done in multiple sessions?

I'm also curious about how many times I need to do it for my teeth to become whiter.

I'm also curious about the amount. I wonder how much it costs.

Lemon, who has many questions.