Pure Natural IngredientsPure natural ingredients, penetrate safely and deeply, deeply whiten teeth, then leave a refreshing mint aftertaste. Night Care charcoal pen using activated carbon ingredient does not contain any synthetic additives, dyes, preservatives, foaming agents, artificial flavors, fluoride or GMOs. Professional EffectOur professional teeth whitening pen contains a natural active ingredient, effectively and quickly remove years of stains caused by coffee, tea, wine, smoking, soda and more. Make the teeth whitening process fast, to get the most effective whitening result without damaged/whitening your teeth. Precise Control The gel pen has a gear-controlled unidirectional rotation knob and can be accurately used bleaching gels according to the scale on the tube. Each gel contains 2ml, just use 1ml each time. The transparent tube allows you to see exactly how much product is left. Convenient & Travel FriendlyEasy to use, the teeth whitening gel pen can be safely used at home and office, and it is convenient to carry when traveling. teeth on the go, anytime and anywhere. A hassle-free way to get white teeth anytime, anywhere! Safe & Easy to UseThe pen features a durable twist mechanism with a soft brush tip that gently paints each tooth and its crevices for a complete whitening experience. The flexible brush head can easily apply whitening gel in the space and over the entire tooth surface.