I've been taking Essiac tea from http://www.herbalhealer.com/ for 4 months now, and they are all organic herbs. I like making it myself - it's not much trouble. You boil it for 10 minutes, let it sit 12 hours, then cook another 10 minutes. I bought the bottles from them too - you make 2 weeks worth at a time, and freeze the extra herbs. Heat the bottles in 200 degree oven before filling them. I add Montana Yew Tips (the Yew tree was what they made the alternative cancer treatment Laetril from, but they've discovered they can use the tips of the branches instead of the bark so they don't kill the tree) and Red Clover tips.
I've been taking Dr. Schulze 's products for over 3 years. I added Essiac tea when I found out I had thyroid cancer.