I'm concerned about pores and volume. Between Juvelook and Sonjusarang injectors, which one is less painful?

I knew absolutely nothing about skin boosters, so I only knew about Vitaran. But my friend raved about how she recently got the Juvelook treatment and got rid of both her inner glow and pores, so I suddenly became interested!

I looked it up, and apparently, the Juvelook ingredient works by continuously inducing collagen production, so it doesn't create artificial volume but rather naturally plumps up the skin texture and fullness. I've already been worried about my cheeks sinking slightly and fine lines under my eyes as I get older, so this product perfectly matches my concerns.

I have a bit of a phobia of needles... so if I get Juvereuk injected manually, is the bumping or bruising usually quite severe? I'm also wondering if it hurts less to get it done with an injector like Hi-COX. Also, how long does the effect usually last when getting a set of about 3 sessions, and can you feel the effects of Juvereuk after just one session? If anyone has experience with this, please share your honest reviews. I want to use this as a reference before my consultation!