Additional Details ------------------------------ Product description: Fast, effective, super-convenient on-the-go teeth whitening. The Smileactives Advanced Teeth Whitening Pen provides a whitening boost that seeps into nooks crannies, and its soft-bristle brush provides quick and easy, no-mess applications. Designed in a sleek, chic package for anytime use, you can use it after meals or in between meetings. Help freshen your breath while brightening your smile. Just brush onto teeth and go! Each pen lasts for up to three weeks and is enough for a full course of twice daily applications. You can see noticeable results in as little as 7 days. All Smileactives pens use hydrogen peroxide as opposed to carbamide peroxide used in other home teeth whitening products. After clinical trial, 100% of test participants reported having whiter teeth after 7 days. The Advanced Teeth Whitening Pen is a convenient lift to your regular brushing routine. You can be proud of brightening your smile with the Smileactives formula? free from alcohol, parabens, detergents, and artificial colors. All harsh substances that can be harmful. Directions: Remove cap and twist dial on bottom of pen counter-clockwise to advance gel to brush tip. Initially may take up to 20 turns of the dial to prime pen. Brush gel onto teeth, taking a few seconds to thinly coat each tooth. Do not rinse off. Use 2-4 times per day for best results. It is recommended to abstain from eating or drinking for 20 minutes after application. Tip: Replace the cap to protect the brush bristles from drying out. Best results when used on clean teeth.