The Colgate Optic White Overnight Whitening Pen is a convenient and effective teeth whitening solution designed for overnight use. This innovative pen features a unique formula that helps to whiten teeth while you sleep, providing noticeable results in just a few uses. The key active ingredient in this whitening pen is hydrogen peroxide, which works to break down stains on the surface of the teeth, revealing a brighter and whiter smile. The pen's precision brush tip allows for easy and targeted application, ensuring thorough coverage for optimal results. The fast-drying formula is designed to stay on your teeth overnight without any mess or discomfort, making it a hassle-free addition to your oral care routine. Experience the confidence of a whiter smile with the Colgate Optic White Overnight Whitening Pen.