Carbamide peroxide whitening gel at 10%, 16% and 22% for supervised at-home use. Potassium nitrate and sodium fluoride as desensitizing agents. Neutral pH. Excellent viscosity. Neural action of potassium nitrate and occlusive sodium fluoride. Potassium nitrate is an effective agent in the treatment of hyperesthetic dentin. Its action 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.