I have very dry hands, my sweet mother passed 2 years ago - her whole body was dry (she wouldn't drink water!), so we've tried a lot of things:
a little Vaseline on moist hands, rubs in well;
if I'm doing gloves over night I use the disposable latex gloves used for painting, etc;
Surgeon's Secret is wonderful;
one of my all time favorites is from the crazy lady Joan Rivers - her Absolutely Magic hand cream - it's the best! Her Absolutely Magic foot cream is too but I can't find it anywhere any more! The foot cream has dimethicone in it, so if you find hand cream with that as an ingredient, should be very healing.