I haven't used any of the butt'rs yet because I haven't done really long rides. At the worst, I'd put something protective like triple antibiotic ointment on the creases by my inner thighs where I can get some chafing.

As for witch hazel and tea tree oil, all that comes to mind is *burning*.. nothing pleasant. Like when you use a muscle rub on your thighs and the vapors get a little too close for comfort.