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 sensitivity. The kit comes with all the items needed to perform a complete whitening treatment.