When performed correctly by a dental professional, teeth whitening treatments are generally safe and should not damage your enamel. Over-the-counter products or improperly applied treatments can sometimes cause sensitivity or wear on your enamel, though. It's important to use dentist-recommended whitening systems that have been clinically tested to be safe for your teeth. Always consult with your dentist before starting any whitening regimen, especially if you have concerns about enamel health.