A cosmetics company in Nagoya City, Japan, in collaboration with the Faculty of Medicine at Fujita Health University, conducted clinical trials on oolong tea stalk extract for the treatment of pollinosis, a common condition in Japan. The results demonstrated significant effectiveness, with marked improvements in nasal and throat symptoms for patients. The extract is now available in tablet form, with 120 tablets priced at 3500 yen, and sales are performing well.