Hello. This time, the topic of my "purchased with my own money" post is essences, serums, and ampoules. The serum I use is the Madeca Micro Star Talk Serum developed by Dongkook Pharmaceutical. It is good for whitening and wrinkle improvement. It contains 41% Centella Asiatica extract. It also helps with elasticity. The texture is quite sticky. Since my skin is very dry, I like it. I can't use it in the summer, though. If you have severe dry skin, you should give it a try.