How much does Vitaran cost?

I'm going crazy because the tightness deep inside my skin has gotten really bad lately, whether it's due to the weather or the air conditioner. No matter how many layers of basic skincare products I apply, it only works temporarily, and the inner dryness doesn't go away at all, so I'm really worried.

A friend who sees a dermatologist recommended Vitaran, which contains the ingredient found in salmon extract, saying it is very effective these days for treating internal dryness. I heard that Vitaran is a type of skin booster that replenishes moisture, so I am wondering if it would be suitable for my skin, which is dry and prone to fine lines!

I'm also curious about the level of pain and whether prices vary by clinic. What is the average price range for a single session? If anyone has had this done recently, please let me know!