Some of the info listed in the link above was done by a chemist/phamacist friend of mine.
His take was don’t waste your money on high priced silicon.
It was a professional write up and is respected by folks at custom hydro nutrients, KIS organics, microbeman and some other big names in the industry.
Maybe give it a good read, it is a bit technical but filled with real world science.
Oh, and did I mention my friend OO is a bit of a genius too.
You could say the paper was peer reviewed but not officially.