Well I am going to get some milk thistle, but as I was browsing a herb site that I have order from in the past, I saw milk thistle on their for 16oz (448grams) for $13. Now this is 4times the amount when you order from a supplement company for the same price. My question is, would it be better to order from a supp. company, not sure if the actual seeds themselves are the same as what you get else where, or if supp companies do extractions first to get a stronger powder. Any help would be great.