A great way to naturally whiten your teeth is by brushing with activated charcoal. It works by absorbing the stains from the teeth. Give it a try! You Might Also Like Cayenne Pepper has been shown to help with digestion, circulation and blood flow. October 8, 2015 Natural insect repellents June 22, 2015 Back-To-School Essences for Kids & Students October 20, 2016