HISMILE WHITENING PEN 3MLHiSmile Whitening Pen is for On the go whitening, ideal for touch ups or hard to reach areasPowered by PAP? formula, a peroxide free alternative that gently lifts stains without harmful free radicals, making it safe for enamel and gums How to Use Ensure teeth are clean and fully dry Prime the pen: click the bottom until gel appears at the brush tip Apply a thin layer of gel across the teethideal for stains or maintenance Wait 30 seconds before closing