Each whitening pen contains a specially formulated gel that effectively removes stains without the use of harsh abrasives. Unlike many whitening products, the Pursonic Teeth Whitening Pen is gentle on your enamel and causes no sensitivity, making it a safe and comfortable solution for daily use. Key Features: 3 Whitening Pens Included – Keep one at home, one at work, and one in your travel bag 0.07 FL OZ / 2 mL Per Pen – Each pen provides multiple uses for lasting brightness Fast-Acting Formula – See visible results with just a few applications No Sensitivity – Designed to whiten without irritation, even for sensitive teeth Safe on Enamel – Gentle, effective formula that protects your natural tooth surface No Harsh Abrasives – Cleans and brightens without damaging your teeth Travel-Friendly Design – Slim and compact, perfect for pockets, purses, or carry-ons Easy Application – Twist, brush, and go—no mess, no fuss.