Does this make a difference? Who knows.
Using along with bleaching pens. Tried pens by themselves awhile back and saw no results. Now using with this gizmo and results are visible. Is it the gizmo or just better quality pens? I can’t say for sure. But even though it looks ridiculous sticking out of your pie hole like a half eaten cookie, I could care less so long as it works. I do the treatment just before I get in the car for commute and could give a hoot if somebody thinks I’m eating a cookie while driving.
Rating: 5 stars