Chromium is an essential trace element for the human body. It has a specific role in carbohydrate metabolism and lipid metabolism. Trivalent chromium is beneficial to our body while hexavalent chromium is toxic. Contact with the hexavalent chromium may cause contact chromium dermatitis and eczema. Ingesting hexavalent chromium compounds may cause hyperplastic oral mucosa, edema which leads to crusting, nausea, severe abdominal pain and hepatomegaly. In some serious situations, it could cause circulation failure, loss of consciousness and even death.