This is set of 5 packs ( BIOLASE LaserWhite20 whitening gel Kit) The BIOLASE LaserWhite20 whitening gel is a patented dental whitening solution that works in combination with the Epicx 940 nm laser system. The laser activates the LaserWhite20TM whitening gel via a specialized hand piece and delivery system. The whitening gel was created using chromophore technology and is compatible with Biolase diode laser systems. It is safe and effective It is an excellent way to bleach and whiten dark, yellowed, or discolored teeth with both extrinsic and intrinsic staining. Less chair side time less than 20 minutes to complete the process. Dramatically, shades change, ranging from six to twelve shades of improvement Note:- Company may change item packing time to time. I will ship latest packing of same product. "The sale of this item may be subject to regulation by the U.S.. Food and Drug Administration and state and local regulatory agencies. If so, do not bid on this item unless you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping of the item."