... whitening light 1) Teeth whitening pen, teeth whitening gel, teeth whitening light2) Teeth whitening pen is a ... whitening product, Coat the teeth whitening with the gel, in 30 seconds the gel dries rapidly and invisibly on the enamel , ... efficient than at the moment of the application. The gel doesn't dissolve in water or saliva and it ... 2g or 4 g5) Twist head, plastic window with aluminium sheath pen