Specially formulated, sensitivity-free in office patient whitening treatment kit. Advanced dual barrel whitening gel formulation features hydrogen peroxide in either 24% or 30% concentrations. Fast prep time and only four 8-minute applications when used with the original GLO Hardware Kit or only two 8-minute applications when used with the new GLO PRO POWER+ In Office Technology. No lab fees, no impressions, no bleaching trays. Chairside Whitening Kit must be paired with the original GLO Hardware Kit OR with the new GLO PRO POWER+ In Office Technology - packaged separately.