Remove years of stains and protect against new ones* with the Colgate Optic White Overnight Teeth Whitening Pen and Whitening Toothpaste Kit. This teeth whitening kit includes one Colgate Optic White Overnight Whitening Pen and one Colgate Optic White Pro Series Whitening Toothpaste. Transform your smile with the Colgate whitening pen, which features a precision tip applicator, is enamel safe, and is designed for no tooth sensitivity**. Then maintain your bright smile with the Colgate Optic White Pro Series Teeth Whitening Toothpaste, which uses a 5% hydrogen peroxide-based formula to deeply whiten beyond surface stains and prevent future stains so you can enjoy your favorite tea, coffee, or wine. When using the teeth gel whitening pen, follow your regular brushing routine. Next, dry your teeth, then paint the whitening gel onto clean, dry teeth. (1 dip is enough for up to 5 teeth.) The serum dries within seconds and will stay on your teeth overnight while you sleep. To remove the dried serum, simply brush your teeth like normal when you wake up the next morning and enjoy a whiter smile. Repeat treatment nightly for 1-3 weeks in a row for best teeth whitening results. Get glowing and start smiling brighter with the Colgate Optic White Overnight Teeth Whitening Pen and Whitening Toothpaste Kit. *when used as directed **during and after the whitening process