Please recommend some collagen~

These days, as I get older, I am keenly feeling my skin sagging.

Getting older is sad enough, but this is making me feel sad too.

I noticed you were taking a lot of collagen.

I don't know which product to buy.

I was taking collagen pills, but I stopped because the price was too much of a burden lol.

I'd like to ask for some recommendations for something with good value for money.