During the time I lived in Japan, on repeated occasions Japanese commented that Koreans had such good skin. It does seem that Koreans take extra-special care of their skin. As I wander through Korean towns, the word 피부 (pibu – the Korean word for skin) appears frequently in signs. There are also a great number of shops which sell products for skin, such as the ubiquitous chain The Face Shop (the chain uses an English name rather than a Korean name, which is pretty typical in the naming of Korean chain shops).
Below is a barbershop pole photographed from both sides. One side says 피부관리샵 (관리 means management), and the other side says 피부맛사지 (skin massage).
In the window of this Chinese medicine clinic (한방), 피부과 (dermatology/dermatologist) is the one of the services listed.
At night time, a 포장마차 (pojang macha – a food and drinking tent) is set up in front of the skin clinic pictured below.