Now you can easily and quickly improve the shade of your teeth without una a visit to the dentist, simply by using the Smile White set from Rio-Beauty! This set employs una innovative blue light activation technology for effective stain removal caused by coffee, tea, wine, smoking, or natural aging. Just 15 minutes, and you can enjoy a whiter smile again.| Features: | - Included in the set: an LED mouthpiece to produce blue light (no batteries required, can be connected via USB even to a smartphone), whitening spray with una improved formula for pre-treatment of teeth, and whitening gel, sufficient for 20 treatments; - The mouthpiece is equipped with 16 LEDs; - Works quickly, simply, and intuitively; - Helps remove stains on enamel and whiten teeth; - Can be used at home without una a visit to the dentist; - Already after the first use, the shade of the teeth improves by 5.4 shades (measured according to R-20 Bleaching®). || Use according to the instructions.