Demand in the Korean market

I'm curious about the skincare market in Korea, especially among women in their 30s and 40s. I know that Korean women generally invest a lot of time and effort into skincare, but do most of them actually use premium skincare products, or is it more common to use mid-range or affordable brands? I also understand that many Korean women visit dermatology clinics. Do dermatology clinics usually recommend or use premium skincare lines as part of their treatments? Personally, I feel that even affordable Korean skincare products offer high-quality ingredients and excellent performance. That's why I'm interested in understanding where the biggest consumer demand lies. Are premium products the main market, or do affordable and mid-range products make up the majority of sales?