Teeth Whitening Professional Dental Office strength 16% Carbamide Peroxide Refill Gel in our bulk quantity tube is a fantastic value! This large 60 gram tube contains as much whitening gel as in twelve 5ml syringes and provides you with up to 120 whitening applications.  Also included in this package is a reusable 5ml dental dispensing syringe so that you can target the whitening gel with precision in your bleaching trays.  Now you can save money by filling your own syringe as needed. This gel is the exact formula used by professional dental offices