I'm curious about the effectiveness and price of the collagen booster, and whether it is recommended for someone with skin like mine!

Hello! I am in my 30s and have been very worried lately because whenever I look in the mirror, I feel like my skin elasticity is dropping significantly and my facial contours are sagging.

I am really realizing that collagen in the skin decreases rapidly as we age.
I feel like I can't recover at all with home care alone, so I am considering dermatological procedures.
After looking up some information, I heard that these days, many people are getting collagen booster treatments that help the skin regenerate itself, rather than artificial fillers.
What are the specific effects of the collagen booster?
I heard that it stimulates the production of your own collagen to add volume and elasticity,
I am wondering approximately how long it takes to see noticeable changes after the procedure.
Also, I would like to know if it provides substantial help in improving pores, skin texture, and overall density, in addition to simply improving fine lines.
I'm also curious how long the effect usually lasts.
I am also curious about the price range.
Usually, the average cost per session is roughly what, and
Also, since repeated treatments are usually required to see proper results, I would like to know a rough guideline on the total cost.
Finally, who is the exact target audience for this procedure?
Is a collagen booster good for people who are concerned about sunken areas on their face due to a lack of volume?
Or I am wondering if it is more suitable for people like me who have thin skin with poor elasticity and develop fine lines.
My skin is sensitive or thin, so I'm worried about potential side effects.