Myeongdong stores: Olive Young Myeongdong Town (53 Myeongdong-gil, 1F-2F) and

Central Myeongdong Town (M Plaza, 27 Myeongdong 8-gil, B1-3F), both open till 10:30 pm. The 250ml CNP mist has the most reviews (13K+) but must go in checked bags; pick the 100ml for carry-on. The 100ml mist goes through security in your 1L clear bag.