The underground Daiso is in Seomyeon Underground Shopping Center's Central Mall (Gaya-daero underground 777, unit J-17), open until 10 pm. The mall has long corridors and lots of shops, so it's easy to go in circles; Daiso Busan Seomyeon (43 Jungang-daero 702beon-gil) is above ground too. MEDIPEEL Melanon X Ampoule (30ml) has 27K+ orders; these 30-50ml bottles fit your carry-on liquids bag.