What finally changed the game for me was locking in moisture within 60 seconds...

https://lunasbrilliantdigests.evergrovio.com/posts/how-many-times-a-week-should-i-use-lactic-acid-lotion-on-rough-spots

What finally changed the game for me was locking in moisture within 60 seconds after stepping out of the shower. Adding urea cream with 10% helped soften my rough heels, and now my hands and chest stay smoother because I consistently use SPF there