We highly recommend Schizandu Organics Activated Coconut Charcoal Capsules for those looking for a natural remedy for gas, nausea, and digestive issues. We were impressed with the versatility of ...

Some companies sell toothpastes, tablets, and other products made with activated charcoal-- an ingredient they tout as a tooth whitener. It's charcoal that's been heated with a gas to make it porous.