Busan Station Olive Young: the store in the 2F waiting hall is open 8:30am–10pm, easiest before your KTX, while the Busan Station store outside (197 Jungang-daero) opens at 11am. Get off at Busan Station on Busan Line 1. The Acne Doctor 1st Speedy Spot (14ml) has 9,360 reviews, rated 4.7✔️