What is

Now with teeth whitening you can get the white teeth you’ve always dreamed of! Within 40 minutes, accompanied by relaxing music, in a comfortable position and a nice view, the result is already visible! You are back to your normal habits after an hour!

What ages are they for?
How often can I do?
How long does it take
What can I do to make it last longer?
At the dentist’s office or at home?
Is it true that whitening destroys tooth enamel?