I'm going to Seoul! Any must-try beauty and skincare experiences?

Hi everyone! I'm Peiyu, and I'm finally going to Seoul next month! I'm super excited 🎉 I've always wanted to experience Korean beauty and skincare culture firsthand. I've heard Seoul has many different options, but honestly, I'm a little unsure where to start.

My skin is on the dry side, and I'm currently considering some moisturizing or soothing treatments. Could anyone share some must-try beauty experiences when visiting Korea? For example, skin analysis, skincare treatments, or reviews of beauty shops? I'd love to hear everyone's personal experiences and recommendations, especially what first-time visitors should be aware of.

Also, which areas in Seoul have a high concentration of beauty clinics or skincare centers? I'd like to do some research beforehand to see if there are any suitable options for me. Thank you so much for your suggestions!