The newer stop
Pharmacy skincare약국 화장품
Pharmacies in Myeongdong and Namdaemun Market now pitch to visitors with pharmacy-sold creams and skincare, alongside the medicines only a pharmacy can sell.

Two different things sit on the same counter. Some products are cosmetics, such as pharmacy-brand creams. Others are over-the-counter medicines that Korean law allows only pharmacies to sell.
Ask the pharmacist which is which, read the leaflet, and keep medicines in their original box when you travel.
Where to look
On the shelf at
Sources