My hands are not too bad at the moment but in the winter they can get horribly cracked. I use a variety of creams including a barrier cream (such as zinc and castor oil) before I go out. At the moment I'm finding Atrixo good, for my feet too. I go through giant pots of E45 and also use beeswax and comfrey and any 'gardeners' creams I can buy. For the actual cracks I use Sudocrem. Anything with cocoa butter makes my eyes stream, as do most of the perfumed ones. For the depths of winter, bag balm (udder cream) is great and comes in giant pots so you can use plenty. I also find that wearing gloves all the time helps, and putting wet hands into wool or sheepskin lined gloves can reduce the cracking. I have recently found a gardeners soap with primrose seeds in which cleans the hands gently but very thoroughly and moisturises as it goes - excellent after a muddy day in the garden.