Fulvic Acid

The various hydro-nute companies selling Fulvic Acid (FA) mention all the benefits, but fail to mention the source of their FA.

I did a search and spent several hours learning that not all FA is the same. Some, in fact, have a lot of heavy metals (passed off as minerals), which are toxic in very low doses, let alone the constant exposure in a hydro/aero system. Also, extraction methods vary, most methods produce an inferior impure product.

I settled on bioag, who offers a variety of products, including for human consumption. I ordered that, too.