Kolorz ClearShield 5% Sodium Fluoride Varnish, 0.40 mL Unit Doses, Mint, 200/Pk. It goes on clear, with no embarrassing discoloration. Long-Lasting Relief from Dental Hypersensitivity, Contains Xylitol, Saccharin-free, Gluten-free. 200 - 0.4 ml unit doses