I have no experience with this product, but you may want to look at this:

http://www.amazon.com/Rocket-Shower-.../dp/B002PDLDOC

The ingredient list mentions witch hazel, grapefruit peel oil and other essential oils. I'm not sure what the solvent is, but judging from the description of the product evaporating quickly, it may be isopropyl alcohol (or some other low vapor pressure solvent safe for human use.) Looks like it won't be too hard to come up with your own formulation.