product description: Remove stains-Our professional tooth whitening pen contains 35% carbamide peroxide, a safe form of peroxide, which can effectively and quickly remove stains caused by sodas such as coffee, tea, wine, tobacco and so on for several years. Its natural mint flavor will keep your mouth fresh. Easy to carry-The compact design of -5 inches allows you to whiten your teeth easily anytime, anywhere. The pen device has a durable twisting mechanism and a soft nib, which can gently paint each tooth and its gaps to obtain a perfect whitening experience. The transparent tube allows you to accurately view the remaining product quantity. Safe and gentle for daily use-this tooth whitening pen is very safe, and it only takes 1 minute a day to get quick results. The pen can be used more than 20 times, and when used continuously, the teeth can be whitened in 4 to 8 shades. Our whitening pen is the ideal solution for professional whitening at home without being bothered by sensitivity. No need to visit the dentist for chemical whitening treatment. Instructions for use: 1. After brushing, dry the surface of the teeth, pull out the cap, and rotate the end clockwise to the whitening gel onto the brush on the head. 2. Apply the whitening glue to the upper and lower teeth evenly, with a thickness of approximately 1m (-Under normal circumstances, the whitening range is 8-10 teeth) your lips after 30 seconds. Do not eat or drink for the next 30 minutes. After 30 minutes, use water to stimulate the mouth, which can last for more than a week, and the effect is better. Product Details: Applicable object: Adult Net content 4.0g Efficacy Teeth whitening The product contains; 1X Teeth Whitening Pen