When I first came to Japan, I was extremely surprised that men didn't have a custom of using deodorant. All I saw on TV or in posters were deodorant for women. The pharmacy's were filled with deodorant packaged and marketed for women only and were in the womens section.These days in Japan however, some cosmetics companies have started to make deodorant targeted at men but only a few meaning that smelly train carriages will be around for a bit longer.