How long does a collagen booster last when my face looks dry and dull?

As I get older, my skin elasticity drops rapidly, and pillow marks don't go away for over half a day, so I get really depressed every time I look in the mirror haha. Fine lines have gotten especially thick around my eyes, so I decided to try improving my skin's fundamental condition! I found a product that claims to make my skin naturally plump up from deep within. Collagen Booster I'm seriously looking into the procedure ㅠㅠ I heard it makes the whole face firm, and if I get it just once, like this Collagen Booster I'm curious roughly how many months the long-lasting effects actually hold! Since it involves injecting directly into the face, I'm also worried about how many days the bruising or embossing marks will last haha. I want my fine lines to be completely smoothed out and my skin to feel taut. Collagen Booster I would be so grateful if those of you who have been getting this consistently could share lots of real-life tips on whether it really makes your skin as smooth as a peeled egg lol