You might want to try a small dose to begin with to see how your body reacts first. Lufenuron seemed to work really well, but I haven't decided if it can cause some bad side effects/aggravations or not. I ordered mine though owndoc.com. As far as i know its the most pure Lufenuron you can buy. Stay away from any source that is not pure. I know some on curezone have used it with good results and some have used it with no results. Might depend on the level of fungal candida in each individual.