In my opinion a very good product. A few days after starting to take the capsules I felt quite bad during the night; they were clearly working on the worms! A few days later the effect was marvellous, with former energy levels returning to normal, after several months of feeling weak and dizzy. It is so marvellous to feel like one's former self. I strongly recommend this product. Just be prepared for a slight shock when they start to work!