Tanda Pearl#153; is a breakthrough teeth whitening solution from a patented technology that uses a gentle micro-current to generate an electro-ionic reaction with a Ionic Whitening Gel. The enamel-safe Gel breaks down stains set deep inside the teeth with no irritation or discomfort. Visibly whiter teeth in just 25 minutes. Up to eight shades whiter. Guaranteed fast, safe and highly effective results due to its patented electro-chemical activation technology. The only system that whitens the front and back of your teeth for overall whitening. Kills 99% of bacteria, making your teeth fresh and clean. Ergonomic double-biting tray for simultaneous treatment of the upper and lower arches Hands-free. Automatic shut-off for each treatment cycle. No irritation. Kit includes: TANDA pearl mouthpiece. 20 ampoules of Tanda Pearl#153; ionic whitening gel. How to use - Step 1. Squeeze one gel ampoule evenly into each side of the double biting tray. Step 2. Press the activator button, when light turns to steady green insert the Pearl into your mouth. Step 3. The treatment cycle lasts for 5 minutes. Step 4. Remove Pearl and rinse your mouth and the Pearl thoroughly Repeat 4 times, for a total of 25 minutes. Complete remaining 5 treatments within 5 days for optimal whitening.