Skincare serum I bought with my own money

Whenever dry weather starts, my face inevitably feels tight.

Since my skin is dry, I get a lot of wrinkles...

However, after using Charmzone oil serum on a friend's recommendation

The tightness after washing my face is gone, and my skin feels moisturized even when I wake up in the morning. However, the oil isn't too rich, so it doesn't feel thick or heavy. It is one of my holy grail products.