Fast whitening with visible results 7 days to see the effect: 30 minutes a day, 7 days to significantly improve the exogenous pigmentation of tooth stains, coffee stains, smoke stains and other exogenous pigmentation. Long-lasting whitening: Continuous use for 2-4 weeks to consolidate the whitening effect and say goodbye to the embarrassment of yellow teeth. Mild formula, sensitive teeth friendly 0 Hydrogen Peroxide: Food-grade safe ingredients to avoid acid erosion of tooth enamel and reduce gum irritation. Added Gum Protection Factor: contains aloe vera, xylitol and other natural ingredients to soothe sensitivity, teeth are not sore after use. High fit design, invisible without embarrassment Ultra-thin elastic film cloth: only 0.1mm thickness, fits the curvature of teeth, not easy to fall off when talking or drinking. Transparent and invisible: almost invisible after sticking on, workplace, dating, travelling at any time to use, no social embarrassment. Individual packaging, hygienic and portable Single sealed package: one box contains 14-28 stickers (7-14 days dosage), each piece is individually sterilised to avoid contamination. Compact and lightweight: pocket/bag carry, business trips, travelling without interrupting whitening plans.