**What It Is**: A copper scraper that helps clean and rid your tongue of excess bacteria. **What It Does**: Used for centuries because of its anti-microbial properties, copper helps kill germs on contact and, when used as a part of your regular routine, can prevent future growth of odor-causing bacteria. **About Keeko** Keeko's smile-brightening blends harness the Ayurvedic practice of oil pulling - swishing with plant-blased oil to remove buildup from your teeth - to give your grin a cleaner, whiter gleam. Formulated with coconut, lemon, myrrh and chamomile oils, its detoxifying benefits start to appear after just two weeks of regular use.