Tooth whitening can improve the look of your pearly not-so-whites, but can they damage your teeth?
Subscribe to Earth Lab for more fascinating science videos – http://bit.ly/SubscribeToEarthLab
All the best Earth Lab videos http://bit.ly/EarthLabOriginals
Best of BBC Earth videos http://bit.ly/TheBestOfBBCEarthVideos
Here at BBC Earth Lab we answer all your curious questions about science in the world around you. If there’s a question you have that we haven’t yet answered or an experiment you’d like us to try let us know in the comments on any of our videos and it could be answered by one of our Earth Lab experts.
Want to share your views with the team behind BBC Earth and win prizes? Join our fan panel here: http://tinyurl.com/YouTube-BBCEarth-FanPanel
This is a channel from BBC Studios who help fund new BBC programmes. Service information and feedback: https://www.bbcworldwide.com/ContactWizard