I'm another eulactol gold user too. Since moving out to the outback, my feet get terribly dry and thick skin on them if I don't look after them. I have had some small cracks in my heels and use the eulactol gold until it's finished twice a day, and wear socks after I apply it, usually in the morning when I'm going out the door (means I have to wear shoes that I can wear with socks like my joggers) and then again when I have had my bath/shower, again I put socks on after I apply.

I haven't had cracks in a long time now, since I got a scrubber (like a pumice stone, but not pumice) from the body shop. It's blue and it scrubs the dead skin off so well. I soak my feet for a few minutes before I use it. I have one of those ped-egg things too, which scrape off the dead skin. It's pretty gross, but I don't need to use that so much any more, because my feet are now nice and soft. I also get professional pedicures when I can (not often at the moment, maybe every 4-ish months).