Hubner silicea gastrointestinal gel is best for the treatment of gastrointestinal illnesses causing, stomach aches, nausea, vomiting, flatulence, heartburn and diarrhoea. The active ingredient of silicea gel for the gastrointestinal system is silica gel (silicic acid gel) a compound made up of the mineral silicon with oxygen and water. What makes silica gel so special is that it has an unusally high bonding capacity for pathogens and their toxins. This means that pathogens and their toxins are bound by a purely physical process in the gastrointestinal tract and excreted naturally by the intestine. Silicea gel for the gastrointestinal system soothes your symptoms and supports the regeneration of your upset gastrointestinal tract. Because silica gel binds gases in addition to binding pathogens, it can also reduce annoying flatulence. For more chronic conditions, silicea gastrointestinal gel can be used for irritable bowel syndrome.