I meant to post this a while back but couldn’t find the time, so better late than never.
I did 7 days with the trays and gel. I’ll try the pen and toothpaste later.
My teeth got a few shades whiter, but more importantly, the yellow spots from to much coke and smoking dussapeared or at least got lighter. Which was what I was looking for.
(The difference is more noticeable in real life.)
The procedure was simple and completely pain free which is great so I would definitely recommend this.
It might be a while until I try the pen and toothpaste.
I ordered from http://www.beconfident.se