I don't have personal experience with threelac, but I know of many people that do. I am on groups of thousands of parents of children with autism. Candida in autism is very very common, but it is found in the intestinal track, via stool test. Many parents have tried threelac with mixed thoughts. For some it works great and for others it just doesn't work but costs lots of money. I know that often times like many of us, threelac may work as long as you are using it, but again as soon as you are don't using threelac,the candida is back. What many of us have found with our children, and even with ourselves, just keeping it under control is what we do. We use things such as diet, probiotics, aqua-flora, diflucan, nystatin, grapefruit seed extract, and several other products, both natural and prescribed. Balancing all of that, allowing time to heal the intestinal tract. In turn getting the candida under control. I know there is someone on this group who agrees if you do not get the intestinal candida under control, then the vaginal will continue as they in such a close area.This really makes sense. I believe those of us who suffer are completely unbalanced, diet, thyroid, just general health is not in line somewhere. Threelac, I would think hard and long before I would spend that kind of money unless you are willing to balance the rest. From the experience of others Threelac is not an end all to candida, just an expensive temporary bandaid.