Double desensitizing action.
Neural action of potassium nitrate and occlusive action of sodium fluoride. The action of potassium nitrate is based on the fact that the increased concentration of extracellular potassium depolarizes the membranes of nerve fibers, blocking the passage of the stimulus, reducing hypersensitivity.
Does not run off the tray.
Each syringe contains 3g of gel, which yield up to 9 applications.