I use OM Turkey Tail. And Indole-3-Carbinol, NOW brand. You never want any supplements made in China. Dr. Sherry Rogers has tested supplements from her online store, called N.E.E.D.S. She is an Environmental Health doctor. Both she, and the doctors at The Environmental Health Center, in Dallas Texas, test for estrogen- mimicking chemicals. They are the ones causing the rising rates of breast cancer. I was exposed to high levels of Chlordane as an adolescent, and tested for abnormally high levels at age 42. I am saving up my money to be retested. There is a sauna protocol, to detox, at Dallas but I never tried it.