[Natural Ingredients]: This powerful stain-removing and whitening pen utilizes the powerful cleaning power of xylitol, the most effective natural stain remover. Rightens teeth by utilizing color correcting technology. Reduce yellow stains, and make your teeth no longer yellow. Fresh breath and bad breath, care for whiter teeth. [Unique Active]: Our Professional Teeth Whitening Serum contains unique actives that deeply whiten teeth, prevent the re-formation of stains, and maintain the whitening effect for a long time. Long-term use of this product shalls help to keep periodontal problems away. [Easy Remove Years of Stains]: Our professional teeth whitening pen contains whitening ingredients that can effectively and quickly remove years of tooth stains caused by coffee, tea, alcohol, smoking, soda, etc. And make your teeth white and clean. [Easy to Use and Store]: This teeth whitener is very easy to whiten teeth, and the steps are simple: brush tooth, twist pen, leave gel onto teeth, rinse mouth. Its easy to store in a cool, dry place, away from direct sunlight.