(The Best Years in Life) Virtually all commercial toothpastes contain one or both of two problematic ingredients: fluoride and glycerin. Fluoride, a mining by-product, is one of the bigger scams perpetrated on an unwitting public. Instead of being beneficial it actually is damages teeth. Glycerin coats the enamel and prevents natural re-mineralization of teeth. The solution in avoiding those two items may be making your own tooth paste or tooth cleanser at home. Read More.