Teeth Whitening Kit :These pre-filled gumshield-style trays contain a gentle, peroxide-free whitening gel to be used over the course of five days. A 20-minute treatment time followed by a swoosh around with water means it's all pretty simple, but expect effective stain removal rather than megawatt brightening. Slightly shallow trays mean this treatment is best for those without a tombstone grin. Teeth Whitening Kit buy now this website Hollywood Bright Smile Teeth Whitening Kit Reviews & Price