What month is better to travel to Korea? Where can I buy cosmetics in Korea? For example, Ellie's cabin is full of poems and songs.

When going to Korea, the tour guide said that March and April are the off-season for Korean tourism. At other times, many people go to Korea, that is, wherever you go, you will find that all people speak Chinese, haha. . . It is cheaper to buy cosmetics in Korean duty-free shops. There are all the brands you mentioned, and there are many duty-free shops in Korea, such as Lotte and Silla. But the things bought in duty-free shops are not as good as those bought in Korean counters. For example, a Lan Zhi sleep mask has a moisture content of 80% in Korean counters, 60% in duty-free shops and less than 40% in China. I went to Korea in May. I bought cosmetics in Lotte's online duty-free shop. I bought it online. When I return to China, I will meet them at the Korean airport. The price will be lower than that of the physical duty-free shops10-about 20 yuan. I put them on the plane, which is very heavy. In addition, I bought Samsung's skin care products. Samsung's skin care products are not exported, so we don't know about Samsung's skin care products.