Function: A peroxide free formulation that aims to whiten teeth, alleviate pre-existing sensitivity, and strengthen tooth enamel, all in one! Quick: Can whiten up to eight shades over just seven days! PAP: With a key ingredient - PAP - than aims to prevent gum irritation. Teeth Whitening: Get a PAP+ 5 LED teeth whitening kit. Includes: The kit comes with six teeth whitening gel pods, one soft silicone mouth tray, one battery operated 5 LED device, one user manual, and one shade guide. Pap+ 5 Led Teeth Whitening Kit | Living Social | Living Social