It works period
So I suffer from very dry and cracked feet, especially my heels which can get pretty rough.  I have found foot creams to be annoying to apply as they take forever to saturate, and leave my feet a little greasy for my liking.  I saw these sock like thingies and had to try them.  First I think that these work best of you use a foot scrubber first to remove some dead skin, and then proceed to wear them while you sleep.  Let me also say that I hate wearing socks to bed, but do not mind these in the least as they are open toed, and allow my feet to remain cool.  The interior is also a little cooling, as there is some kind of gel or cream like insert to do the moisturizing.  I wish I had taken a before picture, that is my bad, but believe me when I say that my feet were much much drier when I first started to wear them.  I have worn them for about a week every night, and I am always impressed with how smooth my feet feel in the morning.  It really does work, and is a much better idea and alternative to foot creams.  You simply slip them on, and go to sleep.  What could be easier than that.  If you scrub dead skin off of your heels before using them, they will work even better to maintain and improve the hydration of your heels.  I know that worked for me, and I am very pleased with the results.
Rating: 5 stars