I got mine from a local hippy healthfood store... they said a biochemist makes it for them and thats where my kids pediatricians wife got hers from. I've had it for weeks but was too scared to take it because unless i make it myself, i have no clue what's in it. I was going to ask for a prescription for potassium iodine, but don't know enough about it yet to go tinkering with it.. or even know how I'll react to taking it. So far I'm only taking tiny amounts that are in my vitamins... like 600mcg a day. Plus, I wanted to try to make myself a little less toxic before jumping in. I don't want to have to deal with the detoxing and increasing doses over time.. just jump right in.