Smile With Confident! DIAREGNO Teeth Whitening Pen Removes Years of Stains on Your Teeth, And Brings Your Bright and Whiter Teeth Back! FEATURES: Easy to Use Fast Results No Sensitivity Compact Design TravelFriendly Affordable INSTRUCTIONS: 1. Brush and floss your teeth, then dry your teeth with a tissue 2. Rotate the bottom of the pen clockwise till a small amount of gel flow from the chamber onto the brush. You may need more twisting in the first use 3. Gently apply a thin layer of gel evenly on each tooth with the brush 4. Hold your lips open and try not to touch the teeth as much as possible for 30 seconds. And avoid eating or drinking for another 30 minutes 5. Apply twice a day until your teeth reaches your desired shade of white. WARNINGS: For cosmetic use only Do not swallow Avoid direct contact with eyes Temporary teeth sensitivity may occurs STOP using when sustained discomfort or irritation occurs Do not use if you have mouth ulcers, gum injury or after oral operations Store in a cool, shaded place Keep out of reach of children. INGREDIENTS: Deionised Water, Peroxide, Glycerin, Potassium Sorbate, Polysorbate 20, Triethanolamine, Carbomer, EDTA