My internal dryness is severe; would Rejuran be effective?

Hello

Lately, perhaps because the weather has turned chilly during the change of seasons like early winter, I am worried because even when I apply a generous amount of nourishing cream, the tightness deep inside my face doesn't go away at all.

I'm really stressed because my skin feels like it's cracking after washing my face, and my makeup always looks patchy. An acquaintance recommended Rejuran Healer to me, saying their internal dryness improved a lot after getting it at a dermatology clinic. However, I'm hesitating because I'm scared to try it since I heard the pain from the hand injection is intense. I'm worried about spending a lot of money only to suffer without seeing any results. I'm curious to know if those who have received Rejuran really find it helpful for dryness and how long the embossed marks last.