Is the collagen care effect temporary? Anyone willing to share their review?

I've tried taking oral collagen supplements at home and diligently applied topical treatments, but there were limits to seeing noticeable changes. That’s just how it is with oral supplements, I suppose. So this time, I’m looking into treatments that care for the skin from deep within, but there are so many types that it’s hard to choose. I’m drawn to collagen care... but what I’m wondering about is how long the effects last.

I'm curious if collagen care really makes the skin itself stronger and gives it elasticity, rather than just making it look good for a moment. My mind keeps going back and forth because the reviews for collagen care are all so different, lol.

I'm especially worried that my cheeks keep sagging, making my overall facial contours look blurry. Let's get firm and healthy skin together.