I use this and love it. I've only tried the NON-Oily version which does contain some alcohol (ethanol? or something) so it has to be rinsed out or I guess it would dry out your hair. But, the effects of using it are amazing.
I use it after shampooing and deep conditioning, I spray in my hair, put on a shower cap and leave on for 5 minutes then rinse.
Talk about moisture!
I hear the Aloe version can be left it. It does not contain alcohol. I assume the Aloe version is the "oily" version.