What finally helped me was locking in moisture within 60 seconds after my...

https://bizzmarkblog.com/should-i-put-sunscreen-on-the-backs-of-my-hands-every-day/

What finally helped me was locking in moisture within 60 seconds after my shower. I started using a cream with 10% urea on my dry heels, and the difference is real—softer and less cracked. I also never skip SPF on my hands and chest now