The most effective type of charcoal is the activated form. This process renders it 2 to 3 times as effective as regular charcoal. First, the charcoal is ground very fine; and then it is placed in a steam chamber. This opens up the charcoal and exposes more of its surfaces, so it can absorb much more. Modern medical science recognizes the many benefits of activated charcoal and uses Activated Charcoal USP, a pure, naturally produced wood charcoal carbon that has no carcinogenic properties. Charbright By Alps+MD.