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

Myeongdong Station Store (Migliore 1F, 115 Toegye-ro), 10am–10:30pm. MISSHA Vita C Plus ampoule (40ml) has 6,615 reviews. The 50ml BB cream and 40ml ampoule are both under 100ml, so carry-on is fine.