Yes, it works!
Two packs are needed for a full cleanse, but I opened up three because I might have used too much of the liquid at the beginning, not knowing what "1 dropper" meant. I believe it means 1 ml.
I should mention that while I was on this cleanse, I took diluted apple cider vinegar in the morning, cayenne capsules with meals and Thorne Research's SF722. Towards the end, I also started taking Kyolic garlic capsules. While I cannot attribute my results completely to ParaGone, I'm quite confident that it played a significant role.
Many parasites cannot be seen with the naked eye, but I did spot various visible types over several days while on this cleanse, without examining everything in detail. There were days when I experienced quite a bit of hunger. For me, the laxative effect was cumulative, such that I experienced it more as each round progressed.
I noticed a clear difference in the freshness of the liquid depending on how long ago a pack was purchased (even when the expiry date is years away), so it's probably best to take it soon after receiving it.
I'm quite satisfied with the results.