Is Vitaran recommended for those with severe internal dryness?

Maybe it's because the weather has been so dry lately, but my skin feels so tight deep inside that it's driving me crazy ㅠㅠ No matter how much cream I apply before bed, my face feels like it's going to crack by the next morning. I heard that directly delivering nutrients is the best way to treat inner dryness, so while looking into it, I found out about Vitaran, which contains the same ingredient found in salmon extract injections!

I heard that it contains polynucleotide, which regenerates damaged skin tissue and fully replenishes moisture. Haha. I heard it is especially excellent for improving fine lines around the eyes and skin texture, so I think it is the perfect treatment for my current skin condition. I would like to know in detail which skin types are recommended for Vitaran.

My skin is thin and sensitive, so I can't handle just anything, but I feel relieved to hear that this has high biocompatibility and I'm less worried about side effects haha. Still, I'm curious how long the embossing or bruising lasts, and if I can return to my daily life immediately. Would people with extremely dry skin like me be the primary target audience for Vitaran?

I've seen reviews saying it's a bit painful, so I'm a little scared, but I'm willing to grit my teeth and endure it if it just improves my skin ㅠㅠ I heard it's best to get it about 3 times at one-month intervals, so the doctor's skill must be important too, right? For those of you who want stronger skin, please give me some honest reviews of Vitaran and tips on choosing a clinic!