Doesn't everybody?

I don't usually apply it while I'm actually on the plane, but I certainly could (if I weren't concerned about the possibility of eliciting an allergic reaction in a fellow passenger). Typically I use it right after disembarking from a long haul flight: instead of matted and limp and oily, my hair is bouncy and fluffy and smells nice.

I also use it on the second and even third day after conventional shampooing, and before going out in the evening if it's been a particularly long day.

I used it this AM, in fact, and my hair looks great. And it took me less than 2 minutes total to "wash" and style it.