Experience the Natural Power of Mother Nature with Tom's of Maine! This Antiplaque & Whitening toothpaste is formulated with authentic, natural ingredients. We harness the benefits of zinc citrate, sourced from zinc, a naturally occurring mineral, as well as xylitol, a natural ingredient derived from birch trees or corn. And with the added touch of natural flavors, brushing your teeth becomes an enjoyable experience you won't want to miss out on!