Pac-Dent iBrite Automix Gel-Type Chairside Tooth Whitening KitPac Dent iBrite Automix Gel Type Chairside Tooth Whitening Kit. The iBrite 30% HP dual barrel professional whitening gel produces amazing results and requires no refrigeration. The dual barrel system means no troublesome syringe to syringe mixing, while the unique proprietary formulation features active calcium ions that promote remineralization. The mixed gel has a balanced pH value, and includes potassium nitrate and fluoride to further eliminate