Myeongdong has Daiso Myeongdong Main Store (43 Myeongdong-gil) and Myeongdong Station Store (134-1 Toegye-ro), both open until 10 pm. If one is sold out, the other is under 10 minutes' walk. VT CICA Calming Mask (4 sheets) is ₩3,000 with 15K+ orders; Reedle Shot EGF Essence (2ml x6) is ₩3,000 with 33K+. Grab popular ones when you see them; they may be gone later.