I was first given a sample of this tea from a gal in Florida, who is a massage therapist and also does colonic irrigation. I have since purchased it from the Internet, finding it by a search. I finally found a price I liked and bought it from a chiropractor who mailed me three boxes. Be prepared for sticker shock. Especially if you take it according to their directions. But, as previously mentioned, I still take it diluted. My diet is extremely healthy, and I get lots of exercise, with plenty of water, yet things were not moving. The top of my tongue was turning black and someone mentioned that was because I was backed up. So I took the tea regularly, and now my tongue is not black. I will continue taking the tea until I feel I have moved things along enough to try not using the tea.