LONGECITY

Fulvic acid has caught my interest, but it's hard to find credible info or products with precise ingredients listed.  What's your experience of it, or your research-based opinion about its use?  

Also, what's the difference between fulvic acid (which sounds like a specific, single compound) and fulvic minerals?  They get lumped in together, but sound entirely different.

How does humic acid fit in?

What are some worthy, quality products to try?  (I found a range that sounds good...but it should because it's sold via a multi-level marketing machine, which immediately wrecks its credibility.)

Thanks.