My complexion looks dull, so I'm thinking of getting Vitaran. Will it really be effective?

I am worried because my complexion looks too dull and dark. I also frequently hear that I look tired, and I get stressed because my skin looks squalid when I'm not wearing makeup.

I have been consistently using whitening cosmetics and taking vitamins, but I didn't feel like my skin was brightening from deep within. So, while looking into dermatological procedures, I saw a post saying that Vitaran is good for skin regeneration, tone improvement, and hydration.

I heard it belongs to the salmon extract family, similar to Rejuran, so I'm curious if I can actually feel the effects on complexion improvement or skin texture refinement! It seems quite popular. Also, what is the pain like during the procedure? My pain tolerance is low, so would it be manageable for me?