White Kiss Pen. Whitens your smile and freshens your breath. With carbamide peroxide to ensure a neutral pH. -Apply it in the spaces between the teeth. Your guide to color will allow you to compare your color before and after use. -Use them as often as you like. -Fights against caries while whitening your teeth. 5 REASONS TO CHOOSE WHITE KISS: + White Kiss whitens your teeth, "Because the product line Kiss White whitens your teeth and restoring its luster rejuvenating your smile. + White Kiss protect you from tooth decay: Because xylitol contains fluoride and 100% active. + White Kiss is soft: Because your foam is softer and is not abrasive. + White Kiss freshens your breath: because it eliminates the bacteria in plaque. + White Kiss is patented: So kiss White is unique.