Polanight tooth whitening system is a high viscosity, neutral pH take-home tooth whitening gel with a unique blend of soothers, conditioners and water content high enough to further reduce sensitivity. Tooth Whitening System - 22% 10-Syringe Kit - Take-Home, Carbamide Peroxide-based, Spearmint Flavor. Kit: 10 (1.3 g) syringes, 1 set of tray material, 1 tray case, 10 tips and 1 shade guide