Activated charcoal is considered to be the single most effective agent available for cleaning the gastrointestinal (GI) tract and can help reduce discomfort, flatulence and bloating. Wonderfoods' Charcoal Max contains activated vegetable charcoal, peppermint oil, papaya, concentrated fennel and ginger - all targeted at relief from gastrointestinal complaints. Charcoal Max is a natural relief for IBS and uses 100% veggie capsules.