My early stay in Seoul, I found a gargle dispenser in the toilet in Itaewon, complete with the liquid and small plastic cups. Later on.. every after lunch time in my office, I could meet almost everyone brushing their teeth, at their desk, in the toilet.. WOW! And if you noticed, Xylitol gum is actually started here and extremely flourishing! They are sold in the mall until an old women dedicatedly selling Xylitol for life in the street. It’s not just woman beauty products that sells well here, as plastic surgery is very common among young girls (and cheap), but also mouth hygiene products as well, for everyone!