High performance safe + clean ingredients. Fluoride free. SLS free. Recyclable metal tube (check with local recycling facility). 98% USA origin ingredients. Proudly made in USA. We recommend purchasing a toothpaste tube squeezer key for ease of use and less wasted toothpaste. Regular Size: 5.25 oz / 149 gTravel Size: 1.75 oz (TSA compliant) *Davids has now incorporated nano-hydroxyapatite (n-Ha for short), that was developed by NASA to repair and regenerate bone and enamel that astronauts were losing while in a zero-gravity environment in space. This same cutting edge ingredient in their Sensitive+Whitening Hydroxyapatite Toothpaste to create a revolutionary advancement for those who suffer from sensitive teeth. The breakthrough proprietary formula of Davids Sensitive+Whitening toothpaste works to repair the tooth as hydroxyapatite is deposited inside the passageways to the nerves (tubules), where the bio-active material bonds to the inner tooth surface to plug the tubules and stop sensitivity at its source.