Features 1. **Gentle Whitening Formula**: Our Tooth Stain Remover Pen features a unique blend of hydroxyapatite and glycerin, ensuring effective stain removal while being gentle on your enamel, perfect for sensitive teeth. 2. **Easy Application**: Designed for your busy lifestyle, this pen allows for quick and hassle-free application. Simply twist, apply, and brighten your smile in seconds without any complicated steps. 3. **Effective Stain Removal**: Say goodbye to tea, coffee, and other surface stains! Our formula targets and lifts stains, leaving your teeth looking shiny and refreshed after just one use. 4. **Travel-Friendly Design**: Compact and portable, this tooth stain remover pen fits easily in your bag or pocket, making it convenient to use anytime, anywhere, for a confident smile on the go. 5. **No Discomfort**: Specially formulated for sensitive teeth, our stain remover ensures a comfortable experience without any irritation, so you can enjoy a brighter smile worry-free. Our tooth stain removers contain hydroxyapatite and glycerin. It requires no complicated operation and can be easily applied to meet the needs of a fast-paced life, and the ingredients in the formula help to remove surface stains and make teeth look shiny. The way to use it is simple: First, make sure your teeth are clean and dry. Open the cap of the pen and turn the bottom clockwise to squeeze out just the right amount of product, then apply it gently and thinly to each tooth to cover it evenly. It is also designed for sensitive teeth and will not cause discomfort after use.