【USB Type】Home Whitening Self Whitening 16-LED Light ◉ Please be sure to view the images to the end. New, Unused, Free Shipping, Anonymous Delivery This is a USB type. Please insert it into a PC or USB connector to use. It will be wrapped in air cap and shipped via Yu-Packet Post. The vinyl has been opened once to check the LED operation. 【How to Use】 1. Brush lightly with a toothbrush only. 2. After applying toothpaste containing titanium dioxide or whitening gel to your teeth, irradiate with the LED light for about 20 minutes. 3. After that, brush your teeth as usual. 4. After use, simply rinse the LED light with water and store it. ◉ Scientific Basis of Whitening ◉ ・ Apply toothpaste containing titanium dioxide to the teeth. ・ Titanium dioxide adheres around the stains. ・ Irradiate with blue LED → A chemical change called "photocatalysis" occurs. ・ Stains float up → Stains are removed by brushing. ※ When whitening at a dentist, the main ingredients of the drugs used are [hydrogen peroxide] and [carbamide peroxide], but those drugs are prohibited from sale under the Pharmaceutical Affairs Law. ※ Commercially available toothpastes contain [baking soda], [polyphosphoric acid], [calcium carbonate], and [metaphosphoric acid] to remove tooth discoloration. ※ It is easy to apply a thin layer of commercially available toothpaste containing [titanium dioxide] to your teeth and irradiate with the LED light. ※ [Titanium dioxide] alone is also sold on Amazon. #Crest #crest #SelfWhitening #HomeWhitening #Invisalign #TitaniumDioxide #WhiteEssence #WhiteningGel dr.white Dental Lover Smart Dent White Club Super White LV amon de emon Sparkling Eraser Smart Dent Dr.USB