Please tell me lots of ways to improve skin elasticity.

As I mentioned in my previous post about skin texture, my skin is extremely dry. Consequently, when winter comes, the tightness and flaking make it look incredibly dull and rough. I try applying every cream and ampoule I can find, but after a couple of hours, they disappear without a trace—I'm not sure if they absorbed or just evaporated—and my skin remains rough and dry. I am so incredibly envious of people with glowing skin. As I get older, the law of gravity causes significant sagging, and now that I'm losing elasticity as well, my self-confidence is steadily declining. I would be very grateful if you could share any tips or tricks you have on how to improve skin elasticity.