With new improved packaging and the same formulation as our traditional whitening strips, the shape and size have been specifically designed to cater for men. Spotlight Oral Care teeth whitening strips are the only European whitening strips to contain hydrogen peroxide (less than 0.01%). Hydrogen peroxide is the most effective active agent to whiten teeth. The colour of teeth is influenced by a combination of both the internal colour of our teeth and external staining that attaches to our teeth such as tea, coffee and red wine. Accompanied with the Toothpaste for Whitening Teeth, this will keep the guys smiling!