What do you want to know about alcohol activated makeup? I be happy to share. You can get the makeup in cake to activate with alcohol or get it in liquid to paint it on. Of course for some there is the option of airbrushing it on (better than PAX less hassle but of course you have to invest in a system!).
As for cake makeup you can do moist cake like Wolfe Hydrocolor or Mehron Paradise (or Ben Nye) or dry cake like Mehron Starblend that can be used as powder or wetted for use if desired.
If you go with Alcohol Activate Makeup you won't need to fix the makeup with a fixing spray. It is recommended with the moist cake body paint makeups. And setting powders are not use with alcohol activated makeup, moist or dry cakes.