Daiso Myeongdong Main Store (43 Myeongdong-gil) and Olive Young Myeongdong Town

(53 Myeongdong-gil) are on the same street, a few minutes apart. For a leave-on tonic, try Daleaf Chlorella hair tonic (16K+ reviews, often a 2-pack). Daiso's 90ml scaler fits your carry-on liquids bag; the 250g scrub goes in checked luggage.