I'm curious about the effects of Vitaran, famous for the salmon injection!

I’ve heard from people around me for a long time that salmon injections are great for skin regeneration and elasticity improvement, but lately it seems many people are looking for Vitaran because of its good value for money. After lurking on mom cafes, I saw claims that getting a thin injection into fine lines or dark circles around the eyes makes the skin incredibly firm, so I’ve really become interested. My skin is on the thinner side, so I have severe hollowness under my eyes and fine lines everywhere, which makes me very self-conscious every time I smile. I heard that the biggest advantages of Vitaran are that it is less expensive and less painful compared to other famous procedures like Rejuran; is it really painful enough to get without shedding a tear? ㅠㅠ Also, I’m curious how many cc of Vitaran is typically injected per session to see noticeable results on eye wrinkles. I’ve heard that you need to get it consistently to thicken the dermis layer, so I’d like to know the approximate total price range for a 3-session package. If there are any clinics in the Gangnam or Dongdaemun area that administer Vitaran delicately and meticulously without causing bruising, please let me know!