This product is the most effective for candida that I have tried so far. I have had severe candida for a number of years, 2 years ago I tried taking threelac for quite a few months, my symptoms improved but never went away all together, after awhile I gradually stopped taking threelac and my candida came back even worse that before, to the point that I could hardly get out of bed for most of the day. I started on threelac/fivelac, oxygen drops, digestive enzymes, and colostrum, and I started gradually getting better again, after 5 months I had hit a plateau and wasn't improving, I added goldenseal formula and immediately starting improving again. After 2 months of taking it I ran out, and even though I was still taking 6 threelac/fivelac a day I started getting worse again. I started it again and immediately started getting better again, I now wake up at 6 full of energy, I am looking forward to finally be able to get rid of my candida completely!