Bullet Points: 1.Tooth Restoration: Repair tooth enamel, moisturize the gums, and make you're chewing more comfortable with our teeth-lightening pen. This product also helps to make your teeth stronger and brighter, giving you a confident smile. 2.Lasting Effect: Say goodbye to stains and yellow teeth with this teeth-lightening pen. It delivers a powerful brightening formula that penetrates deep into the enamel and removes years of discoloration. 3.Travel-friendly: This teeth-brightening pen is small and easy to use, making it great for going out or traveling. You can carry it in your pocket or purse and apply it anytime, anywhere. No need for trays, strips, or rinses. Just twist, brush, and smile. 4.Fine brush head: With a fine brush head, this teeth lightening pen can target specific spots on your teeth without causing any confusion or waste. It ensures maximum performance and precise application for a brighter smile. 5.Safe and Gentle Formula: This teeth-lightening pen is safe and gentle for your teeth and gums. It contains natural lemon extract and non-irritating soda that does not harm your tooth enamel. Transform your smile with our Tooth Restoration Gel. Say goodbye to stains and yellow teeth for good. Our easy to carry gel comes with a fine brush head and includes soda for added cleaning power. Product Name: Purple Tooth Cleaning Pen Specification: 4ml/0.13oz Kind tips: 1. Due to the color temperature of the display, camera, ambient light and photography skills, etc., there may be a slight color difference in the pictures of some products, and the color is subject to the actual product! 2. Due to different manual measurements, please allow a slight size difference. List: purple teeth whitener*1