Does Vita have any specific advantages?

I hear a lot of people say it's similar to Rejuran, but I'm hesitating because I don't know what the distinct advantages of Vitaran are. I hear the ingredients are extracted from salmon just like the others, so are there any tangible benefits to choosing Vitaran instead of Rejuran?

The most notable point is the claim that the pain is much less, and that is quite tempting. Is it really possible to undergo the procedure peacefully with just anesthetic cream? I'm wondering if I can stick with Vitaran. However, I'm also concerned that the effectiveness might be minimal given the reduced pain, or if it offers good value for money.

What do you think is the biggest strength of Vitaran that you've experienced? I'm curious about actual reviews. Haha. If anyone has alternated between Vitaran and Rejuran, are there any specific points where you think Vitaran is much better for certain skin types?