Our teeth brightening pens contain vitamin C, Alcamel thorn leaf extract, peppermint oil. It can help remove surface stains and make teeth look radiant. How to use it is simple: 1. First, make sure your teeth are clean and dry. 2. Apply the product lightly and thinly to each tooth, covering it evenly; 3. Wait 30 seconds and rinse your mouth with water. Enhance your confident smile, quickly improve your teeth shine, and make your smile more attractive.