I had been looking for a parasite cleanse kit for quite a while and eventually chose the 'Harmful Organism Cleanse Kit' by GHC because of great past experiences with their line of products (Liver Cleanse Kit, Oxy-Powder). I knew I had a parasitic infection of some kind (diagnosed mainly through different bio-resonance technologies but at least one parasite confirmed by a stool test) and wanted to make sure I'd get rid of those and potentially others that I didn't even know about. I did the cleanse for about 7 weeks and had really bad detox symptoms in the beginning (for the first 2-3 weeks, feeling extremely fatigued, having terrible headaches and the like) but then slowly getting better. In hindsight, I should have lowered the dosage I was taking when I got started to reduce the detox load that my body had to handle. But anyways... to my regret, I didn't pass any worms or anything visible (that would have been very satisfying to see) but considering the massive detox reaction I had for almost half of the time I am sure my body got rid of all different kinds of things. Unfortunately, I'm still experiencing strong bloating which I've had for the past 7 years but that's probably because it wasn't related to any parasitic activity in my body. A candida cleanse is what's next on my list... overall, I can absolutely recommend this product!