I'm curious about the satisfaction level with the collagen booster!

Hello, I am writing this because I have some questions about collagen boosters! Lately, whenever I look in the mirror, I’ve been feeling much more strongly that my skin's elasticity isn't what it used to be. I’ve started to get worried because pillow marks don't disappear for a long time even after I wake up in the morning, and I feel like my cheeks are sagging.

So, I am seriously considering getting a collagen booster treatment, which is said to help improve skin elasticity. Since I haven't tried it yet, I'm curious about the reviews and satisfaction levels. If anyone has recently tried a collagen booster like Revicol, I am really curious to know the actual level of satisfaction. I would also like to know if you noticed any significant changes in skin dryness or elasticity.

It would be a great help for me to make a choice if you could share the effects or pros and cons of collagen boosters. Thank you in advance! Haha.