In Seongsu, Olive Young Seongsu Station (91 Achasan-ro) is near Seongsu Station on Line 2, open until 10:30pm; Olive Young N Seongsu (13 Yeonmujang 7-gil) is open until 10pm. Skin that reddens easily? The Cica Calming 95 cream, 80ml plus 20ml, has 4,700 reviews; at 80ml it's fine in your carry-on. Both are near Seongsu Station.