The tube that ends the nightly argument. Davids gives its Hydroxi formula a natural strawberry and watermelon flavour with no mint in it at all, and describes the result as gentle for kids and effective for adults, so one tube covers the whole sink. It is sweetened with birch xylitol and stevia rather than sugar.

Underneath the flavour is nano hydroxyapatite, which Davids describes as rod shaped and around 50 nm, small enough to fill microscopic fissures and dentin tubules, and it says the birch xylitol aids in mineralizing tooth enamel. Fluoride free and SLS free, with no artificial flavors, colors or preservatives, and USDA certified as a 100 percent biobased product. Recyclable metal tube. Net 4 oz / 113 g.

Prefer orange vanilla? Get that tube — $9.95