Colgate Optic White Overnight Whitening Pen is a quick and easy solution for achieving a brighter smile. This convenient pen is designed to be applied before bed, allowing the whitening formula to work overnight while you sleep. Containing hydrogen peroxide, it effectively helps remove surface stains and prevent new stains from forming, giving you a visibly whiter smile. The pen's compact design allows for precise application, making it ideal for both home and travel use. Safe for daily use and gentle on enamel, this whitening pen provides an effortless way to enhance your smile without the need for complicated procedures.