Activated charcoal had been a popular ingredient these days because the natural health benefits they have. Hello Toothpaste is now giving away free samples of their brand new Activated charcoal toothpaste. You can now try this product before they make it in the stores. All you needed to do is to register and wait for the toothpaste to be delivered to your home. They only have 25 slots available so try registering to be chosen.