... Technology no-slip grip.For level 5 whitening on whitening meter.Enamel Safe: All Crest 3D White Whitestrips use ... to hold well to teeth. Do not use on loose teeth, restorations or braces. Crest 3D White ... cool place. Best if used by date noted on package.PVP,PEG 8,Water,Hydrogen Peroxide,Acrylates Copolymer ... cool place. Best if used by date noted on package.PVP,PEG 8,Water,Hydrogen Peroxide,Acrylates ...