Three days to dramatically whiter teeth, even better results in 710 days. Thirty minutes of required once-a-day wear, with a custom whitening tray. Utilizes 9% hydrogen peroxide and is formulated with potassium nitrate and fluoride. Full kit contains 40.10 fl. oz. (3 mL) Whitening Gel Syringes, Mouth Tray Storage Case, and Patient Instructions. Touch-up kit contains 20.10 fl. oz. (3 mL) Whitening Gel Syringes and Patient Instructions.