I'm 60 years old...so my teeth have yellowed slightly from age. And I have noticed
a whitening effect. I've thought of switching to Castor Oil...I've heard that's
the best one for whitening. But that's so thick...I don't know if I could stand it
or not.
I really believe it's removing the plaque...and I'm all for that happening.
As for the 'calculus'...I had to look that up...I wasn't even sure of what that was...I don't have any heavy yellow build up...but I've never smoked, etc.
I did at first...notice a 'splotchy' look....like it was lightening more in some
spots than others....so I just did it several times a day to zip through that
'stage'...and they seem quite a bit whiter now....