Epsom salt vs Molybdenum

I know Epsom Salt flushes out excess toxins but does molybdenum do the same thing. I am thinking of taking MSM and I read that one should take molybdenum with it to remove the toxins. Will Epsom Salt do the same thing? Also where are people buying there supplements from. I just want to make sure where I buy from is good quality supplements/herbs.
Tweet