Please recommend a serum that helps with skin elasticity.

It makes me a bit sad to keep using the word "age," but as I get older, my skin elasticity is decreasing day by day.

People say it's due to gravity, but I don't have high expectations. Are there any essences or serums that can slow down the deterioration of skin elasticity or help improve it? Going to a hospital for surgery or procedures costs money and time, so I want to do my best right here. Still, I believe there will be a difference between someone who makes an effort and someone who doesn't, so I intend to start making an effort now. Since applying something to my skin would likely provide some peace of mind compared to doing nothing, please recommend an essence or serum that helps with skin elasticity.