Actually, I'm very familiar with the products they use for this service. And let me tell you, they are magically delicious and amazing for your body!!! You can learn more about the line at
www.mebath.com - this is a company owned by a friend of mine from my high school years - -- and this stuff is absolutely amazing. I highly recommend getting a tub of the Shower Sherbet for YOURSELF for your stateroom --- nothing better for washing the sand off after a day at the beach and having the softest skin ever. Best thing is that they sell it on board for the same price as on land - no mark up.
I've heard wonderful things about the Ice Cream Mani/Pedi, but my own DD is too young to get it on board. Enjoy!