Now you can whiten your teeth in the comfort of your own home with this simple, safe and effective kit. See brilliant results from just 10 minutes. The strongest take-home formulas available, Mr.Bright is the trusted and easy way to a whiter smile. How to use: Step 1. Ensure mouth tray and teeth are clean.  Step 2. Check to see the LED light is working by twisting the cover on the back of the LED light to expose the batteries. Remove the plastic sleeve insert that sits between both batteries and then place the batteries back in the LED in the correct position.  Step 3. Attach the LED light onto the front of the mouth tray and clip into position.  Step 4. Apply 1/4 of the gel from 1x tube into the mouth tray. Apply just enough to coat the frontal surfaces of the mouth guard for your teeth to be whitened, but not your gums.  Step 5. Place the mouth tray into your mouth (with LED light turned on) and hold into position. Press the 'on' button and then it will countdown from 10 minutes - you can repeat this 10 minute countdown 3-4 times per sitting. Recommended use of a minimum of 20 minutes.  Step 6. After use, rinse our mouth with lukewarm water and ensure that you have cleaned your mouth guard to keep it hygienic. Repeat this for 6 consecutive days to achieve best results.