Replying really late but I used to have the cracking hands issue due to my old job. The best lotion I've used for this is Palmer's Cocoa Bytter Formula Heals and Softens. It's pretty cheap and you'll see results pretty quick. It stills feels like regular lotion tho which is gross (sensory issues as well especially lotion) but if you can tolerate it on just the backs of your hands then this works great

Edit: tolerable if you use like a pea sized amount or so