In Myeongdong: Daiso Myeongdong Main Store (43 Myeongdong-gil) and Myeongdong

Station Store (134-1 Toegye-ro), 10am–10pm. Cica Bubble Sparkling Booster is ₩3,000 for four 10g packs, with 21,326 orders. The 4ml, 7.5g and 10g packs are all fine for carry-on and barely take up space in a pouch. Both stores are right in Myeongdong.