Yes I was caught out with this one - after "winning" some free samples and using them on a pony that was hard to worm with syringes but loved the VermX - at the next worm count the rest were under 200epg and many had none seen in the samples, she was something like 2500epg.. They did used to claim it was a legitimate proven healthy herbal nonchemical environmentally friendly worming product until they got hit by not being able to prove anything whatsoever other than making money off people.
I use chemicals again now on all the livestock - Marriages flubenvet layers pellets for the chooks, but they then require at least a weeks withdrawal (it may be longer, I'm waiting the latest order to arrive and can't remember) which is a lot of wasted eggs so if anyone ?taz08 has an alternative that actually works, please let me know!