Activated charcoal is the secret ingredient. It’s an oxidized version of charcoal and can be used to effectively whiten teeth. This tooth whitening promotes good oral health and can change the pH in the mouth. Helping to reduce things that cause cavities, gum disease and bad breath. HELLO COCO is a 100% Natural Teeth Whitener. It naturally whitens teeth, polishes teeth, strengthens enamel and detoxifies your mouth without any chemicals and added nasties.