6-(Methylsulfinyl)hexyl isothiocyanate (6-MITC or 6-MSITC) is a compound within the isothiocyanate group of organosulfur compounds. 6-MITC is obtained from cruciferous vegetables, chiefly wasabi.  Like other isothiocyanates, it is produced when the enzyme myrosinase transforms the associated glucosinolate into 6-MITC upon cell injury.
It is a trend in Japan to apply freshly grated wasabi stem to the hair because Kinin Corporation, the world's largest wasabi producer, claims that 6-MITC promotes hair regrowth.
In a 2023 study of healthy older adults aged 60 years and over, the group taking one tablet (0.8 mg of 6-MSITC) every day for 12 weeks showed a significant improvement in working and episodic memory performances. These results  have been reported in the popular press, using the name "hexaraphane" for 6-MSITC.