Trying a new toothpaste at 62, especially one bought online with ingredients unlike the ones I’ve used all my life, is a big deal. The claims made by Zing are also a big deal. Well, here I am at 63, a few months down the line, with whiter teeth than I’ve ever had, all sensitivity gone and a Zing fan for life (hopefully a longer life if it helps to stay cancer free). Well done Zing, one of the great products of a generation