In short, it's easier to apply because there are no drips however even a tiny bit gives me awful dandruff. My scalp (where it's applied) is so dry it's flaking off! I think the side effects of Rogaine are from the minoxidil and not glycol propylene.
However it is making more baby hairs so it's hard for me to stop using it. Now I only put a touch on every few days. I have a strong suspicion that it's giving me premature forehead wrinkles. So more wrinkles or more hair???