Twice's duo of whitening toothpaste is formulated by world-class dentists. This set of two types gives you one toothpaste for brushing in the morning and one for use in the evening. It's a healthy toothpaste choice that is gluten-free, vegan, and non-GMO.  Twice is also a responsible product that does not test on animals. We offer free delivery, and you can subscribe to save money. Visit https://www.smiletwice.com/