Features: - Carbamide peroxide Formula. - Lower sensitivity. - Unbeatable daytime bleaching: 30 minutes, twice daily. - University study proves the gel stays active for 8-10 hours during overnight bleaching. - Use with or without reservoirs. - Fluoride & patented micro potassium nitrate for sensitivity. - 20% water helps prevent dehydration and shade relapse. - Sticky, viscous formula stays in the tray. Pack contains: - 1 x 1.2 ml Syringes.