Try taking really cold showers, not only will you no longer have dry skin but there is a host of different benefits.
Check out Wim Hof - he is a genius when it comes to cold science.
No one believed him until he was doing crazy stuff like climbing mount Everest with no shirt, wearing shorts
Geeze so I have to tighten up my skin? That is what you want me to do. Ya and Cold Science might be a way to go. But shirtless on Everest is crazy.
I don't know if cold water tightens up the skin, but warm/hot water dries up the skin fast.
Wim Hof always says running in the cold with clothes on isn't really a challenge lol