I saw results immediately
I was very impressed with the pen great improvement in just a couple of days. Will buy again.
Noticeably whiter teeth in a couple days. Using after eating/drinking definitely helps.
I noticed a difference in the whiteness of my teeth after a few uses. Have been using it three times a week for about a year. My dentist even commented about the nice color of my teeth.
It seemed to make my teeth Almost White. Does it work on veneers? Otherwise, the product makes my teeth a little whiter.