For some of you who are on the internet, there are many people who will make you buy products against parasites that are not proven or that may not be real. They want to buy things that will make you feel better or that will cure you of parasites. They don't know that the products that they are buying may actually be harmful. You want to know what you should do with the products you are buying? You should try them. If they are all you have tried, I hope you will feel better after trying them. Do not be discouraged by not knowing if a product is good. It can be. If you can't see the difference between a product that you have tried and one that you haven't tried, you will know what it is. You need to try everything. There is no shame in trying everything that is available to you.
What I recommend, is to read the ingredients. Make sure that they don't contain any preservatives, artificial colors, or flavors. If they do, it is likely that they have some kind of preservative, which will make them less effective. Make sure you understand the ingredients as well as they can be understood.