Don't let the dark hue fool you — this charcoal-activated toothpaste is a bright burst of yuzu citrus and cool mint. It swaps fluoride for nano-hydroxyapatite (n-Ha), a naturally occurring mineral that makes up much of your tooth enamel. Nano-hydroxyapatite (n-Ha) to help remineralize and strengthen enamel Activated charcoal to gently help whiten teeth Yuzu & mint for a bright, citrusy finish Fluoride-free and formulated to be sensitivity-free