Mustard (wasabi) oil is the main spicy ingredients of Wasabi, its strong spicy can stimulate the secretion of saliva and gastric juice, has the work of appetizer, enhance the person's appetite. Mustard (wasabi powder) has a strong detoxification function, which can play the role of detoxification for fish and crab, so the raw salmon and other fresh food are often fitted with mustard. Mustard (wasabi) on reducing blood viscosity, the treatment of asthma, tooth decay preventing and so on also have certain effect. Mustard oil and the effect of hairdressing to raise color, in the beauty industry, mustard oil is a good massage oil.