No! The teeth whitening procedure does not damage your enamel. Enamel is the hardest tissue in the human body, and the teeth whitening gel used for the procedure will not damage or harm the enamel. However, when you use teeth whitening products, you will experience temporary tooth sensitivity. During this time, you should avoid consuming drinks and foods that are extremely hot and cold because they may irritate the nerve tissue. You should also stay away from food or beverages that contain color until your tooth is rehydrated, or it will absorb the color of the food that your teeth are exposed to.