I usually get mine at Whole Foods. I use New Chapter Organics and Solgar. Neither of those brands contain coal tar. I don’t remember the last time I was ill.
We use New Chapter Organics as well as some other high quality, relatively expensive brands. Here’s they deal: the really cheap drugstore crap is from CHINA. How much do you trust them?
There are plenty of ways to save money. Not with your food or vitamins.
Whole Foods has a good selection, but try iHerb.com for better pricing on the same items you are getting at Whole Foods...