First of all I'll mention that I've tried a number of all natural toothpastes over the years - even the enamel/tooth-building kind using Hydroxyapatite. All of them worked well to varying degrees, but worked very well depending on a specificity that you were looking for - natural & safe enough to swallow, gum sensitivity, breath freshening, etc. But overall, your mouth didn't stay feeling clean for very long, I noticed. The Coral toothpastes are not only very effective, and supportive for all th...