I don't expect anybody to say what they used in a proprietary formula - they are in business to make money, and they should be able to. They lied about bacteria being in Vibrant - I had three different people look at some under a microscope and there is none in there. I have no ire for this... they are allowed to not tell us anything. I just wish that they would stay silent (like others).
It is wormwood in a higher concentration along with a few other things like Iodine/Lugols and some other stuff that they are allowed to keep secret. I have some background info from a while back (early this year) when I posted about wormwood working on this board and RC and got a lot of PMs... I will not sell any of these people out.
If we were wrong, then what smart person would post about us being wrong? Just let people chase a dead lead. Nothing protects your product better than a false formula.
Again, I have no issue with them not saying anything.
FWIW - wormwood will kill AEFW dead in a few minutes in high enough of concentrations. They are morons if they did could not kill AEFW with it and I just do not believe this. I have no idea if you want to add this much to your tank. Levamisole (Flatworm Exit) also will kill AEFW - I have done this in my own home... it is just not reef safe at the dosage required, which is a lot. Salifert never admitted to what is in Flatworm Exit - people just figured this out as well. I never tasted any Flatworm Exit. Boyd never admitted what is in Chemiclean, but people figured this out too.
Two people here in town lost a few acropora after Purge treatment. No idea if it is related since I do not have enough info to know for sure. Combine this with a few reported losses on their thread and I would put Purge as a "use with care" treatment and not "totally safe."